Revert Gemfile for general use (remove dev paths)
Leave running of specs to opal-spec
Add some basic docs on generated code for classes and modules
Docs on ivar usage
Document use of x-strings inside ruby code
Qucik debugging notes
Fix super calls on class methods
Tidy up runtime a little bit
Remove json shim for older browsers
Add warning (for now) when yield used as an expression
Ensure yield statements that return also check for break
Treat MatchData just as a special type of array (with correct class)
Inline singleton classes (class << foo)
Remove redundant :donate helper
Make classes inherit class methods through Function
Version 0.3.20
Add Opal.build_gem() convenience method
Move docs related gems into own Gemfile
Cleanup Parser#top code
Add some README docs for build_gem()