fix InController for ruby 2.0's respond_to?

respond_to? returns false for protected methods in ruby 2.0, which is
used to test existence of new/load methods in controllers. This changes
those calls to respond_to?(..., true) which returns true for protected
(or private) methods.
Merge pull request #160 from jhawthorn/ruby2.0

support ruby-2.0.0-preview1