Removed use of deprecated send/recv methods
Revert "Removed use of deprecated send/recv methods"

This reverts commit 6daf945e8a41b757b77b743896ecd291001336f5.
CZMQ aims to work on libzmq/2.2 as well as 3.2
Moved file handling functions into zfile class
Removed tblsize/tbllast macros
stdbool.h is not available on MSVC
Updated copyrights to 2013
Fixed issue #113
Merge pull request #112 from hintjens/master

Moved file handling functions into zfile class