Added thread test.
Merge pull request #20 from MikePopoloski/master

Adding WinRT platform to bx
Cleanup.
Cleanup.
Cleanup.
Added bx::CommandLine test.
Cleanup.
Added atomicTestAndInc/Dec.
Cleanup.
Fixed VS2012 compile error.
Added baseName to extract base file name from file path.
Fixed GCC compile error.
Added fpulse.
Cleanup.
Added check for POD type in templatized read/write function.
Fixed missing define.
Enable undefined define warnings.
Cleanup.
Check compiler _M_ARM define instead of WINAPI define.
Added bx/config.h file.