Wrote new ctx API, added ZMQ_MAX_SOCKETS and ZMQ_IO_THREADS

Disable reconnection option

Add value -1 to the ZMQ_RECONNECT_IVL to disable the reconnection algorithm

Removed sys:// logging infrastructure

Removed last vestiges of thread-safe sockets

* Implemented new ctx API (_new, _destroy, _get, _set)
* Removed 'typesafe' macros from zmq.h
* Added support for MAX_SOCKETS (was tied into change for #337)
* Created new man pages

Fixed issue LIBZMQ-333 (zmq_devices is missing)

 - reverted commit 941be8d2.
 - fixed zmq_device implementation for latest socket_base class
 - added back zmq_device.3 man page

An options to choose the behavior for unroutable messages in ZMQ_ROUTER sockets

Add WinCE support.

* Added two new files: errno.hpp and errno.cpp. They are required to use errno functionality on WM.
* zmq.cpp, msg.h: removed inclusion of errno.h because it is included in zmq.h that is also included by .cpp.
* windows.hpp: process.h is included only for desktop builds.
* thread.cpp: on CE CreateThread is used instead of __beginthreadex
* socket_base.cpp, clock.cpp: on CE include cmnintrin.h instead on intrin.h
* signaler.cpp: on Windows should use special macro around event name (for unicode builds)
* err.hpp: make it include errno.hpp (my file) instead on errno.h when building for CE
* err.cpp: use FormatMessage when building for CE (because CE does not have ANSI API functions)
* zmq.h: do not include errno.h whe building for CE
* libzmq.vcproj: add tro new files

Eliminate unnecessary line break

Changed wrong file name in VC++ project.

Name of the file in the project does not match actual file name:
adress.cpp VS. address.cpp

Fix IPC transport domain socket stream file not being removed when connection is closed

patch for LIBZMQ-328

Fixed a bug in the mtrie table compaction logic.

Signed-off-by: Staffan Gimåker <staffan@spotify.com>

Add missing files to Windows project files

Improve the test for last_endpoint, use the same ports as other tests

tcp_listener::get_address improvements

Minor fixes to get_address code to fix build on solaris and freebsd. Also service doesnt need to be discovered here

Update docs for last endpoint and add test for IPC last endpoint retrieval

Update documentation for last endpoint to mention inaddr_any and add a test for IPC last endpoint checking

More fixes based on CentOS 6.2 results