Merge pull request #446 from glebm/doc-upd

Fix compass, update docs
Compass manifest.rb: remove hard-coded JS files list
Update Javascript doc
Update README.md
Create compass_test.rb
Update .travis.yml
Update .travis.yml
travis: add 3.3 gemfile, fix 3.2 to point to 3.2.0 <= version < 3.3
travis.yml: add sass_3.3.gemfile to the list
travis: sass 3.3.0.rc.1
travis: compass 0.13+ requirement for sass 3.3+
Update README.md
Remove docs directory
Remove Sass reference
3.0.0.0.rc - finally
refs #451 inject bs_variables_path
bump to rc2 for compass support
travis, changelog
travis
refs #409 min number precision: 10