Fixes #811

Copyrights had become ads for Sustrik's corporate sponsors, going against the original
agreement to share copyrights with the community (that agreement was: one line stating
iMatix copyright + one reference to AUTHORS file). The proliferation of corporate ads
is also unfair to the many individual authors. I've removed ALL corporate title from
the source files so the copyright statements can now be centralized in AUTHORS and
source files can be properly updated on an annual basis.

Improve accuracy of time calculations and avoid division by zero when
ticksPerSecond.QuadPart < 1000000.

- when compiling for Windows CE, a C++ project must define the preprocessor definitions: UNDER_CE=$(CEVersion),_WIN32_WCE=$(CEVersion)
- choosing the "_WIN32_CE" form for uniformization with "_WIN32" and "_WIN32_WINNT" already used in libzmq (boost is using both forms)
- see http://msdn.microsoft.com/en-us/library/ee479161(v=winembedded.60).aspx

* 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

Add the '-Ae' flag and check for gethrtime() on HPUX

Check if CLOCK_MONOTONIC defined before using it - if not, use
gethrtime() if it's available, otherwise fall back to the old
behavior.
Signed-off-by: AJ Lewis <aj.lewis@quantum.com>

the sysadmin, which could previously cause long hangs for instance in
zmq_poll.
Signed-off-by: Mika Fischer <mika.fischer@zoopnet.de>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Neale Ferguson <neale@sinenomine.net>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

To use __rdtsc() function MSVC2005 requires including intrin.h
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Function clock_t::rdtsc() now returns correct value when compiled
with sunstudio 12 compiler.
Signed-off-by: Martin Pales <m.pales@gmail.com>