make to_s on Rpc work when frozen
change name/value mappings to use only symbols
fix spec under 1.8.7
Merge pull request #5 from codekitchen/master

merge codekitchen head
remove overridden hash method in Rpc
add groups and RPC stubbing to supported features in README.md
remove eql? and == from Rpc
Merge pull request #21 from centzy/service_rpc

ProtocolBuffers::Rpc and ProtocolBuffers::Service
bump version for beta release
Merge pull request #6 from codekitchen/master

merge codekitchen master