Upgrade Aurora UI to bootstrap3

Updated to bootstrap3 and jquery to 2.1.1. Upgraded smart-table to version 0.2.1 since it is more friendly to bootstrap3.
Updated our html per bootstrap migration guide.
Fixed layout issues with new CSS.
Removed the extra large glyphicons set from our code base since we are using svg icons from bootstrap3.
Added a .bowerrc file to make bower usable from project root.
Updated stats image to use glyphicons from bootstrap3.
Removed dividers from breadcrumb bar since we get them for free in bootstrap3.

All the updated files are in page 1 and page 12.

Testing Done:
./gradlew run and ./gradlew build.

Bugs closed: AURORA-449

Reviewed at https://reviews.apache.org/r/21790/