Speedup: Use tensordot instead of einsum
On branch theano
Changes to be committed:
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	modified:   menpofit/transform/modeldriven.py

Changes not staged for commit:
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	modified:   menpofit/lucaskanade/appearance/__init__.py
	modified:   menpofit/lucaskanade/appearance/alternating.py
Merge pull request #12 from trigeorgis/master

Speedup: Use tensordot instead of einsum
move to menpo==0.4.0a3 as dependency
dont build Py3 with failure on AppVeyor, too slow