adjustments to build on windows with mingw
Merge branch 'master' of https://github.com/nanomsg/nanomsg
Merge branch 'master' of https://github.com/nanomsg/nanomsg
Merge branch 'master' of https://github.com/nanomsg/nanomsg

Conflicts:
	CMakeLists.txt
trying to build on windows,mingw with autotools
added mingw build support for windows to autotool build
Merge branch 'master' of https://github.com/nanomsg/nanomsg

Conflicts:
	src/utils/int.h
implement nn_reallocmsg
cleanup
cleanup
cleanup
add copyright notice
terminate ctx from nn_global_term. matches init call for ctx in nn_global_init
Merge branch 'master' of https://github.com/nanomsg/nanomsg
remove locking when reading chunk reference counter
remove locking when reading chunk reference counter
Update doc nn_reqrep.txt with:
For each request/reply socket, the request is sent to one replier,
and the reply is only respond to one request sender.
Tab->4space efd_*.inc
Tab-> space hash.c
Fixing Windows x64 warnings.