AbstractState tests pass properly again

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
PY subcrit superheated tests pass

There was a typo in umass() function

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
buildbot master now can do full cleans by setting property fullclean to yes in the web UI

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Merge branch 'master' of https://github.com/coolprop/coolprop

Conflicts:
	dev/buildbot/master/master.cfg