Document that responsive tables use `overflow-y: hidden`

Document that Autoprefixer is required

Address #15419

Use a glyphicon instead of the unicode character.

Remove extra word from disabling-responsiveness.html

Closes #14937
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Closes #15288

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Document the VERSION property of the jQuery plugins; 

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Closes #15380
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Bump grunt-contrib-cssmin to ~0.11.0

Revert #14189 to fix #15168

This reverts commit 1b323762.
This reverts PR #14189 because it caused major regressions.

Fixes #15168.

We'll try to revisit #14167's feature request in Bootstrap v4.

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This reverts commit 36b53089.
This reverts PR #14065.

Turns out Glyphicons is more active than we'd thought.

Closes #15419
Refs #10106

Add regression test for #14244.

Special thanks to @programcsharp

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bump grunt-jscs to ~1.1.0

New rule added in JSCS v1.9.0
Our JS already complies with this.

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bump grunt-contrib-uglify to ~0.7.0

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bump grunt-contrib-compress to ~0.13.0

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bump grunt-contrib-jade to ~0.14.0

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bump load-grunt-tasks to ~2.0.0