Change knee.any file in the tutorial. The knee driver was setup to have zero velocity at start and end. This caused the calculation of moment arm to produced weird results.
Fixed error in the tutorial.  Brackets was added to the print function to ensure it works in py3, and matplotlib.pyplot was imported explicitly
Split worker function in to two to simplify the code
Merge branch 'master' of https://github.com/AnyBody-Research-Group/AnyPyTools

Conflicts:
	src/anypytools/abcutils.py
Add workaround for exit bug in AnyBody. Any crashes upon exit are suppresed by the subprocess module
Workaround for bug in Scipy which hijacks the ctrl-c interrupt handler
Fix error in Hyper Cube Macro generator, which treated all values a vectors
Remove all use of python-future package due to a bug which prevents the IPython notebook interrupt the program
Update version number to 0.5.7