HAMA-681: remove debugging messages
HAMA-681: remove debugging messages
HAMA-681: updates the comments.
HAMA-681: fix the signature for squashing function
HAMA-681: fix the signature of squashing function
HAMA-681: remove useless comments
HAMA-681: add apache copyright
HAMA-681: change the name of methods in CostFunction and
SquashingFunction
HAMA-681: fix test cases
HAMA-681: Fix test cases
HAMA-681: add comments
HAMA-681: fix parallel testing problem
HAMA-681: remove useless comments