Removed BS3 styling hacks, using more of BS3 and cleaned up CSS

I've pretty much gone through and killed alot of the hacks that were fighting against Bootstrap 3, replaced many old BS2 classes with BS3 ones. Tidied the HTML/CSS in general, fixing stuff like buttons being too big inside panel-heading areas.

There are probably a few more areas that could be tidied up but this is what I have so far.

Dashboard --
General Information: http://cl.ly/image/2g0T461Y281e
Database Adapters: http://cl.ly/image/1t24371X0Q22
Authentication: http://cl.ly/image/3Z1d463q3v42

API view --
Overview: http://cl.ly/image/3o1L2L3F2j0N
REST services: http://cl.ly/image/0Y2o180g3h3I
Authorization: http://cl.ly/image/3g0Q2j2t1a2p

Create new API Overlay/Modal: http://cl.ly/image/2h351B3l1v1G