Pulled out the Bootstrap 2 dependency and all views that depend on it into a separate package.

The purpose of this change is to allow developers of UF applications a choice between Bootstrap 2 and PatternFly/RCUE.
This will also allow developers to implement their own view layer if they want something other than BS2 or PatternFly.
Switched to GWT 2.6.1 (required for GWTBootstrap3)
WIP: new patternfly view module. not compiling yet.