Remove outdated special operators

Follow ticket-9048
See below links

* http://bugs.ruby-lang.org/issues/9048
* https://github.com/ruby/ruby/pull/383#issuecomment-26915103
Pulled in grammatical constructs from latest MRI ruby parse.y, reformatting to match
Pulled in supporting code for grammatical changes - enough to compile
Imported parser specs from Rubinius.
Added parse_as matcher and parse helper from Rubinius.
Removed compiler specs.
Added .travis.yml.
Added redcard dev dependency.
Added rubinius-toolset dev dependency.
Set filetype for default.mspec.
Added Rake spec tasks.
Added ignore for generated namespec.h.
Remove accidentally versioned debug statement from node_types.rb
Finished implementing existing functionality with new underlying grammar structure; now preparing to implement keyword arguments across the melbourne->ast bridge.
Implement kw_args and kw_rest_arg into process_parse_tree in ext/rubinius/melbourne/visitor.cpp
Fixed misspelled directory.
Fixed custom mspec relates feature.
Fixed creating unique namespace for testing.
Improved .travis.yml configuration.
Add rubyarchhdrhdir to include path