Fix namespace Sass module due to conflict with bootstra-sass-rails

No one should really use the two together, but in case they do, or in case any other library defines a Bootstrap::Sass module, we should be clear that we mean the global core Sass module here. Fixes thomas-mcdonald/bootstrap-sass#293
Fix compass unpack error. Fixes #70

Add :path to Compass registration so "compass unpack" works without errors.
fixes an strange focus bug - refs jlong/sass-twitter-bootstrap#55
Merge pull request #296 from caarlos0/focus_bug

Fixing :focus state on buttons
Merge pull request #294 from trisweb/trisweb_fix_sass_load_path

Fix namespace Sass module due to conflict with bootstra-sass-rails
Merge pull request #295 from JohnAlbin/patch-1

Fix compass unpack error. Fixes #70
2.3.0.1

fix a few bugs n stuff