Merge pull request #65 from Darkside73/master

Update to bootstrap 2.3.0
Update LESS files and release notes for 2.3.0.
Revert "Update to bootstrap 2.3.0"

This reverts commit 931b2f88e137c22aa77e4086b1eba0b7cdd6b3c2.

Conflicts:
	lib/less/rails/bootstrap/version.rb
Finish revert.
Fix update bootstrap script to be one up from this dir.