Yellow 12 14 acu68229 add namespace module

@magneland @ryanoleary @jonmarinellors 

This branch fixes the below two customer-reported issues:
1) RightScale classes (e.g. Server) are in global namespace
2) Hash and Array class monkey-patching causes problems with using in Rails

Resolutions:
1) Places these classes in RestConnection::RightScale namespace
2) Remove monkeypatching and use inheritance instead (RestConnection::Hash and RestConnection::Array)

NOTE: This branch still needs to be tested with virtual monkey