* incomplete test case for morphing/mighty/twin buy
Implemented deep clone for BMDieTwin class
Merge remote-tracking branch 'cgolubi1/1372_reproduce_bug' into 1372_morphing_twin
Added class level tests and altered responder level tests to check that morphing into twin dice works correctly
Merge pull request #1373 from blackshadowshade/1372_morphing_twin

Morphing now copies twin dice properly
Merge branch 'master' of github.com:buttonmen-dev/buttonmen