Bumping to 0.2.8

Bumping VERSION to 0.2.8.rc3

Bumping VERSION to 0.2.8.rc2

Updated Gemfile to include ~> 3.0pre so pre-releases are considered.

[fixes zdennis#24]

Version bump to 0.2.7

Version bump to 0.2.6

Version bump to 0.2.5

Updating Gemfile to include rake so it works with rvm and bundler wit…

…hout complaint

Version bump to 0.2.3

Version bump to 0.2.2