Migration of LESS to SCSS and various fixes
Fixed display issues on Details Page caused by bootstrap 3 update

Per UX suggestion applied Bootstrap 'dl-horizontal' styling plus
added css to left justify the labels on the details page.  Also
addeds col-sm-12 div inside all row divs in detail views, to achieve
proper bootstrap grid usage.

Closes-bug: #1349602
Change-Id: I337150c7a8c90cc838fac8cb89a552a0566789e3
Modal fixes - 2 columns, padding, header, membership

Adds padding to tab-content which takes care of proper
spacing between tabs and tab-content.
Changes modal header h3 margin to save space.
Cleans up Membership widget styling
Unifies 2 column layout in modals using bootstrap columns

Closes-Bug: #1354505
Change-Id: Idca2a2dbdea8cdacc37061faa52004b1020b1bf0