Fix ruby 1.9.3 compatibility
Remove unused method
Consistent review initializers
No more need to check for empty hash when initializing review/lexical class
Move check loaders to own class
Refactor load_lexicals/load_reviews
Move load_prepares back to runner since it's not a real check
Move load_lexicals/load_reviews test to checks_loader_spec
Fix typos
Merge pull request #204 from MGotink/master

Fix ruby 1.9.3 compatibility and some refactorings