MacOS support

MacOS support - fix Makefiles
Additional fixes for Apple/Linux
Add more ASIO error mapping code for apple
Remove xcodeproj files
Disable test large_body

This test was already disabled on Linux. It hangs on MacOS
Merge branch 'apple' into development
Restore default test timeout

This was a debug change that I forgot to undo
Add support for milliseconds in datetime -- Windows only for now
Add fractional seconds support for Linux
Additional tweaks for Windows (buffer size issues)
Merge branch 'apple' into development
RegEx fix for Clang

For some reason Clang toolset doesn't like boost::regex. No time to investigate,
switching to std::regex instead
Implement timer for Apple

Add support for timer based on GCD
Merge branch 'apple' of https://git01.codeplex.com/casablanca into apple

Conflicts:
	Release/src/utilities/asyncrt_utils.cpp
Fix unresolved merge conflict, which caused build break
Update version in props file
Integration from TFS - preparation for 1.4 release
partial fix for build break, still broken
Makefile fixes for json
Fixed build issues (not done yet)

One json test (to_string_escaped_chars) still fails.