set img-circle class in percents

Removed Glyphicons mention from carousel.less

Ensure proper use and location of role="banner"

http://blog.paciellogroup.com/2013/02/using-wai-aria-landmarks-2013/#tablex

http://www.w3.org/TR/wai-aria/roles#banner

http://www.w3.org/html/wg/drafts/html/master/sections.html#the-nav-element

http://dev.w3.org/html5/spec/sections.html#the-nav-element

http://blog.paciellogroup.com/2013/02/using-wai-aria-landmarks-2013/#tablex

Update components.html

Changed "Standard pagination" to "Default pagination"

navbar.less

refactor panels.less

fixes typo introduced in 2b6ec389

Problem introduced in 6b23a66c

Keeping bs-examples consistent with code provided.