Use json gem for rbx tests
Fix regex for DIRECT_RENDERS
Update copyright notice to 2014.
Merge pull request #163 from claudiob/patch-1

Update copyright notice to 2014.
Merge pull request #162 from vincentwoo/patch-1

Fix regex for DIRECT_RENDERS
Test dependency tracker parses quotes correctly
Prevent constants leaking

Dependency tracking constants were actually defined in global scope.
Allow 2.1.0 fail on CI
Version 2.0.2
Add Changelog

Closes #158
Add missing changes to changelog