* add a test of the doppelganger twin failure
Fixed BMDieTwin->roll() to only set value once both subdice have been
rerolled
Merge remote-tracking branch 'cgolubi1/1367_reproduce_bug' into 1367_doppelganger_fail
Tailored responder unit test so that it passes
Merge remote-tracking branch 'upstream/master' into 1367_doppelganger_fail

Manually resolved conflicts in:
	test/src/api/responderTest.php
Merge pull request #1368 from blackshadowshade/1367_doppelganger_fail

Fixed doppelganger bug when cloning twin dice
Merge branch 'master' of github.com:buttonmen-dev/buttonmen