Support both the `_render_option_json` and the newer `_render_with_renderer_json` methods
Remove usage of %i
Merge pull request #655 from wouterw/ww-rails-4.2.0

Fix Rails Master
Merge pull request #644 from tricknotes/fix-0.8-tests

Fix to run 0.8-stable's tests
Fix use of `super` in `define_method`
Merge pull request #663 from wouterw/ww-fix-super-in-define-method

Fix use of `super` in `define_method`
Optimize `has_many` serialization