diff --git a/Gruntfile.js b/Gruntfile.js
index 222ec0eb4d4f267b2a6b44d76ea47d6926bd52af..1e386a1543af1125cf15ed8ebe71ade1f437bc72 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -152,6 +152,7 @@ module.exports = function (grunt) {
       options: {
         includePaths: ['scss'],
         precision: 6,
+        sourceComments: false,
         sourceMap: true
       },
       core: {
diff --git a/package.json b/package.json
index 7c995287f590b3a4bbf915819f2dea3210617591..028e5aab29075bea341a723b1974f819cac610ae 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "grunt-html-validation": "~0.1.18",
     "grunt-jekyll": "~0.4.2",
     "grunt-jscs": "~1.0.0",
-    "grunt-sass": "~0.16.0",
+    "grunt-sass": "~0.17.0",
     "grunt-saucelabs": "~8.3.3",
     "grunt-sed": "~0.1.1",
     "load-grunt-tasks": "~1.0.0",
diff --git a/test-infra/npm-shrinkwrap.json b/test-infra/npm-shrinkwrap.json
index e5c171b654615cd28a661ef829297220daae8e64..90067d3ecf03f7d704b2b4b84edbecd73a9f0da2 100644
--- a/test-infra/npm-shrinkwrap.json
+++ b/test-infra/npm-shrinkwrap.json
@@ -8,8 +8,8 @@
       "resolved": "https://registry.npmjs.org/btoa/-/btoa-1.1.2.tgz"
     },
     "glob": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/glob/-/glob-4.2.1.tgz",
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-4.2.2.tgz",
       "dependencies": {
         "inflight": {
           "version": "1.0.4",
@@ -180,16 +180,16 @@
           "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-2.0.5.tgz",
           "dependencies": {
             "argparse": {
-              "version": "0.1.15",
-              "resolved": "https://registry.npmjs.org/argparse/-/argparse-0.1.15.tgz",
+              "version": "0.1.16",
+              "resolved": "https://registry.npmjs.org/argparse/-/argparse-0.1.16.tgz",
               "dependencies": {
                 "underscore": {
-                  "version": "1.4.4",
-                  "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz"
+                  "version": "1.7.0",
+                  "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.7.0.tgz"
                 },
                 "underscore.string": {
-                  "version": "2.3.3",
-                  "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-2.3.3.tgz"
+                  "version": "2.4.0",
+                  "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-2.4.0.tgz"
                 }
               }
             },
@@ -250,8 +250,8 @@
           "resolved": "https://registry.npmjs.org/autoprefixer-core/-/autoprefixer-core-4.0.1.tgz",
           "dependencies": {
             "caniuse-db": {
-              "version": "1.0.30000028",
-              "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30000028.tgz"
+              "version": "1.0.30000030",
+              "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30000030.tgz"
             },
             "postcss": {
               "version": "3.0.5",
@@ -578,8 +578,8 @@
               }
             },
             "express-session": {
-              "version": "1.9.2",
-              "resolved": "https://registry.npmjs.org/express-session/-/express-session-1.9.2.tgz",
+              "version": "1.9.3",
+              "resolved": "https://registry.npmjs.org/express-session/-/express-session-1.9.3.tgz",
               "dependencies": {
                 "crc": {
                   "version": "3.2.1",
@@ -756,8 +756,8 @@
               }
             },
             "serve-index": {
-              "version": "1.5.1",
-              "resolved": "https://registry.npmjs.org/serve-index/-/serve-index-1.5.1.tgz",
+              "version": "1.5.2",
+              "resolved": "https://registry.npmjs.org/serve-index/-/serve-index-1.5.2.tgz",
               "dependencies": {
                 "accepts": {
                   "version": "1.1.3",
@@ -1008,8 +1008,8 @@
           }
         },
         "clean-css": {
-          "version": "2.2.19",
-          "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-2.2.19.tgz",
+          "version": "2.2.20",
+          "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-2.2.20.tgz",
           "dependencies": {
             "commander": {
               "version": "2.2.0",
@@ -1232,16 +1232,22 @@
                   "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-0.2.5.tgz",
                   "dependencies": {
                     "minimatch": {
-                      "version": "1.0.0",
-                      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-1.0.0.tgz",
+                      "version": "2.0.1",
+                      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-2.0.1.tgz",
                       "dependencies": {
-                        "lru-cache": {
-                          "version": "2.5.0",
-                          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.5.0.tgz"
-                        },
-                        "sigmund": {
-                          "version": "1.0.0",
-                          "resolved": "https://registry.npmjs.org/sigmund/-/sigmund-1.0.0.tgz"
+                        "brace-expansion": {
+                          "version": "1.0.1",
+                          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.0.1.tgz",
+                          "dependencies": {
+                            "balanced-match": {
+                              "version": "0.2.0",
+                              "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-0.2.0.tgz"
+                            },
+                            "concat-map": {
+                              "version": "0.0.0",
+                              "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.0.tgz"
+                            }
+                          }
                         }
                       }
                     }
@@ -1483,304 +1489,6 @@
         }
       }
     },
-    "grunt-contrib-less": {
-      "version": "0.12.0",
-      "resolved": "https://registry.npmjs.org/grunt-contrib-less/-/grunt-contrib-less-0.12.0.tgz",
-      "dependencies": {
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-          "version": "0.2.10",
-          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz"
-        },
-        "chalk": {
-          "version": "0.5.1",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-0.5.1.tgz",
-          "dependencies": {
-            "ansi-styles": {
-              "version": "1.1.0",
-              "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-1.1.0.tgz"
-            },
-            "escape-string-regexp": {
-              "version": "1.0.2",
-              "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.2.tgz"
-            },
-            "has-ansi": {
-              "version": "0.1.0",
-              "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-0.1.0.tgz",
-              "dependencies": {
-                "ansi-regex": {
-                  "version": "0.2.1",
-                  "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-0.2.1.tgz"
-                }
-              }
-            },
-            "strip-ansi": {
-              "version": "0.3.0",
-              "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-0.3.0.tgz",
-              "dependencies": {
-                "ansi-regex": {
-                  "version": "0.2.1",
-                  "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-0.2.1.tgz"
-                }
-              }
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-            "supports-color": {
-              "version": "0.2.0",
-              "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-0.2.0.tgz"
-            }
-          }
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-        "less": {
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-          "resolved": "https://registry.npmjs.org/less/-/less-1.7.5.tgz",
-          "dependencies": {
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-              "version": "2.2.19",
-              "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-2.2.19.tgz",
-              "dependencies": {
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-                  "resolved": "https://registry.npmjs.org/commander/-/commander-2.2.0.tgz"
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-              "version": "3.0.4",
-              "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-3.0.4.tgz"
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-            "mime": {
-              "version": "1.2.11",
-              "resolved": "https://registry.npmjs.org/mime/-/mime-1.2.11.tgz"
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-              "resolved": "https://registry.npmjs.org/request/-/request-2.40.0.tgz",
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-                      "dependencies": {
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-                  "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.4.7.tgz",
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-                      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
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-                      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.13.tgz",
-                      "dependencies": {
-                        "core-util-is": {
-                          "version": "1.0.1",
-                          "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.1.tgz"
-                        },
-                        "isarray": {
-                          "version": "0.0.1",
-                          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz"
-                        },
-                        "string_decoder": {
-                          "version": "0.10.31",
-                          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz"
-                        }
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-                    "typedarray": {
-                      "version": "0.0.6",
-                      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz"
-                    }
-                  }
-                },
-                "zlib-browserify": {
-                  "version": "0.0.3",
-                  "resolved": "https://registry.npmjs.org/zlib-browserify/-/zlib-browserify-0.0.3.tgz",
-                  "dependencies": {
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-                      "version": "0.2.2",
-                      "resolved": "https://registry.npmjs.org/tape/-/tape-0.2.2.tgz",
-                      "dependencies": {
-                        "deep-equal": {
-                          "version": "0.0.0",
-                          "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-0.0.0.tgz"
-                        },
-                        "defined": {
-                          "version": "0.0.0",
-                          "resolved": "https://registry.npmjs.org/defined/-/defined-0.0.0.tgz"
-                        },
-                        "jsonify": {
-                          "version": "0.0.0",
-                          "resolved": "https://registry.npmjs.org/jsonify/-/jsonify-0.0.0.tgz"
-                        }
-                      }
-                    }
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-                }
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-            },
-            "pretty-bytes": {
-              "version": "0.1.2",
-              "resolved": "https://registry.npmjs.org/pretty-bytes/-/pretty-bytes-0.1.2.tgz"
-            }
-          }
-        }
-      }
-    },
     "grunt-contrib-qunit": {
       "version": "0.5.2",
       "resolved": "https://registry.npmjs.org/grunt-contrib-qunit/-/grunt-contrib-qunit-0.5.2.tgz",
@@ -1996,8 +1704,8 @@
                       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-1.0.2.tgz"
                     },
                     "node-uuid": {
-                      "version": "1.4.1",
-                      "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.1.tgz"
+                      "version": "1.4.2",
+                      "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.2.tgz"
                     },
                     "oauth-sign": {
                       "version": "0.4.0",
@@ -2484,8 +2192,8 @@
               "resolved": "https://registry.npmjs.org/mime/-/mime-1.2.11.tgz"
             },
             "node-uuid": {
-              "version": "1.4.1",
-              "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.1.tgz"
+              "version": "1.4.2",
+              "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.2.tgz"
             },
             "oauth-sign": {
               "version": "0.3.0",
@@ -2702,55 +2410,323 @@
               "resolved": "https://registry.npmjs.org/glob/-/glob-4.0.6.tgz",
               "dependencies": {
                 "graceful-fs": {
-                  "version": "3.0.4",
-                  "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-3.0.4.tgz"
+                  "version": "3.0.5",
+                  "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-3.0.5.tgz"
                 },
                 "inherits": {
                   "version": "2.0.1",
                   "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
                 },
-                "once": {
-                  "version": "1.3.1",
-                  "resolved": "https://registry.npmjs.org/once/-/once-1.3.1.tgz",
+                "once": {
+                  "version": "1.3.1",
+                  "resolved": "https://registry.npmjs.org/once/-/once-1.3.1.tgz",
+                  "dependencies": {
+                    "wrappy": {
+                      "version": "1.0.1",
+                      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.1.tgz"
+                    }
+                  }
+                }
+              }
+            },
+            "minimatch": {
+              "version": "1.0.0",
+              "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-1.0.0.tgz",
+              "dependencies": {
+                "lru-cache": {
+                  "version": "2.5.0",
+                  "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.5.0.tgz"
+                },
+                "sigmund": {
+                  "version": "1.0.0",
+                  "resolved": "https://registry.npmjs.org/sigmund/-/sigmund-1.0.0.tgz"
+                }
+              }
+            },
+            "strip-json-comments": {
+              "version": "1.0.2",
+              "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-1.0.2.tgz"
+            },
+            "supports-color": {
+              "version": "1.2.0",
+              "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-1.2.0.tgz"
+            },
+            "vow-fs": {
+              "version": "0.3.3",
+              "resolved": "https://registry.npmjs.org/vow-fs/-/vow-fs-0.3.3.tgz",
+              "dependencies": {
+                "glob": {
+                  "version": "3.2.8",
+                  "resolved": "https://registry.npmjs.org/glob/-/glob-3.2.8.tgz",
+                  "dependencies": {
+                    "inherits": {
+                      "version": "2.0.1",
+                      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
+                    },
+                    "minimatch": {
+                      "version": "0.2.14",
+                      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-0.2.14.tgz",
+                      "dependencies": {
+                        "lru-cache": {
+                          "version": "2.5.0",
+                          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.5.0.tgz"
+                        },
+                        "sigmund": {
+                          "version": "1.0.0",
+                          "resolved": "https://registry.npmjs.org/sigmund/-/sigmund-1.0.0.tgz"
+                        }
+                      }
+                    }
+                  }
+                },
+                "node-uuid": {
+                  "version": "1.4.0",
+                  "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.0.tgz"
+                },
+                "vow": {
+                  "version": "0.4.4",
+                  "resolved": "https://registry.npmjs.org/vow/-/vow-0.4.4.tgz"
+                },
+                "vow-queue": {
+                  "version": "0.4.1",
+                  "resolved": "https://registry.npmjs.org/vow-queue/-/vow-queue-0.4.1.tgz",
+                  "dependencies": {
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@@ -4046,8 +4172,8 @@
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-              "resolved": "https://registry.npmjs.org/which/-/which-1.0.5.tgz"
+              "version": "1.0.7",
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@@ -4104,16 +4230,16 @@
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-          "resolved": "https://registry.npmjs.org/argparse/-/argparse-0.1.15.tgz",
+          "version": "0.1.16",
+          "resolved": "https://registry.npmjs.org/argparse/-/argparse-0.1.16.tgz",
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-              "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.4.4.tgz"
+              "version": "1.7.0",
+              "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.7.0.tgz"
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-              "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-2.3.3.tgz"
+              "version": "2.4.0",
+              "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-2.4.0.tgz"
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