Merge pull request #17 from novazembla/dev

Latest LWS Library for Windows and some fixes for crashing server/clients on close/exit
Merge pull request #15 from emmanuelgeoffray/master

No need to delete win32 files in linux
Merge branch 'master' of https://github.com/labatrockwell/ofxLibwebsockets into dev
Updated to newest library for OS X. Had to comment out close function in Server.cpp. @novazembla is that going to mess you up?
close() now a pure virtual in Reactor; re-added @novazembla's Server close() method
server should send close notification on close
Merge branch 'dev' of https://github.com/labatrockwell/ofxLibwebsockets into dev