Adds rake to the Gemfile so you don't need to use RVM gemsets
Merge pull request #14 from justinxreese/jr/gemsets-blech

Adds rake to the Gemfile so you don't need to use RVM gemsets
Adds version number to build plist via MacGap --version
Adds description to Rakefile release task
Add note about bundle exec to README
v0.2.1
Fix naming of file when uploaded to Github Release Archive
v0.2.2
Removes existing files when rake installing