Shifted full license text to LICENSE file, leaving only a shorter

mention in the source files.

Tweaked setup.py to upload cleanly to PyPi with twine.

Fix some print oddities

Added set_build_dir() method to VeBuild, adjusted logic to use it

and remove the newly built directories at realcleanup().
Bumped version to 1.3.7

Added -pthread to compiler and link flags

bumped version to 1.3.4

Bumped version to 1.3.3

Added README.md to examples subdirectory with descriptions of tests.