Remove figaro

We have are own solution for app configuration management, it does not
really have to be more complicated than that
Avoid high_voltage

Not really worth introducing dependency for trivial functionality.

Also this happens sometimes
http://robots.thoughtbot.com/danger-danger-high-voltage-vulnerability/
Application partial live in views/application

Layouts live in views/layouts
Update gems

New projects should start with fresh set (as much as possible at least)
Hipchat 1.0.0 supports capistrano 3.0 (mostly)
Bump rest of the dependencies
Uses @import directives instead of asset pipeline

This allows to use and reuse bootstrap variables and mixins (which we
should be doing anyway)
Merge pull request #1 from bitzesty/BIS2001-initial-setup-cleanup

Bis2001 initial setup cleanup