Binary offset fixes thanks to Jared Murray.
Correcting the bounds in the truncated normal sampler
Add the offset to predictions in postprocessing
Merge pull request #2 from jmurray1022/binaryFixes

Binary fixes
Multithreaded fixes, test added, and more equal distribution of jobs across threads.
Added back defines to switch to single-threaded.
Merged binary fixes and added offset-based binary test.
Version tweaks in Windows headers.
Added test offsets on C++ side.
R interface now allows setting test offset.
Additional test for offset.
Fixes for tests.
Merge remote-tracking branch 'origin'

Conflicts:
	src/dbarts/bartFit.cpp
	src/external/stats.c