Refactor forking code into Resque_JobStrategy_Interface
Import FCGIClient by Preetam Jinka

https://github.com/PreetamJinka/BitTP/blob/master/src/FCGIClient.php
Removing namespacing for 5.2+ compatibility
convert fcgi to exceptions and blocking sockets
seperate fcgi response from error output
calculate status code for fcgi responses
Fastcgi job strategy implementation
move fastcgi client to external composer package
Merge remote-tracking branch 'erik/fastcgi' into fastcgi

Conflicts:
	lib/Resque/JobStrategy/Fork.php