Merge pull request #53 from hintjens/master

Fixed reference to spec_32.c
Merge pull request #54 from hintjens/master

Fixed protocol signature = 1
Merge pull request #55 from hintjens/master

Clarified meaning of identity
fixing some typos
Update spec_39.txt
reference to zwssock
Merge pull request #56 from somdoron/master

ZWS Message mapped to binary websocket message
Problem: need style for safe construction

Solution: document proposal for constructor that handles out of
heap errors properly.