Fix test/dummy rails app to be rails 4 compat
Made tests ruby 1.8.7 compat
Add xml & json responses for index and show actions on the checks_controller
Moved from to_json to as_json for checklists & results
Pointed people to the issues list
Bumped Version
Merge pull request #7 from basecamp/add-xml-and-json

Add xml and json responses to the checks for more than just text processing.