Simplify AST::ConstantAccess

--HG--
extra : amend_source : 144d59815fb42aab6600a400c371602ff7503644
Add more infrastructure for generating Ruby code from a Myco AST
More support for declarations to_ruby
More support for memes to_ruby
More support for decorators to_ruby

--HG--
extra : amend_source : bf7d6d25fdd4b94f9cd9f2c600549a4ee9597a80
More support for files to_ruby
Fix AST::DeclareObject#to_ruby return value and scoping

--HG--
extra : amend_source : be58d2a67ac4879cb84a3869929d32d629327fcf
Implement #to_ruby_assign for AST::ScopedConstant and AST::ToplevelConstant
More support for categories to_ruby
Fix for not showing receiver in AST::Send#to_ruby

--HG--
extra : amend_source : c64051f9b7900917b76916dce5fecaff608ae62f
Support for more AST constructs to_ruby
Added BasicSpec#skip
More support for AST to_ruby - and bootstrapping from rubied source files now operational
Optimize output for AST::ConstantDefine#to_ruby