Corrected and added states on RFCs
Small fixes to text
Added language for methods that take ownership
Clarified use of internal identities
Clarified details of backwards interoperability
Fixed dangling text that was meant to be deleted
Fixed grammar so property name is 1 or more characters
First draft of CurveZMQ specs
Merge pull request #18 from hintjens/master

Started on CurveZMQ specs