added clear_history() method
renamed module to varikn; added cpointer functions to module
merge
reset init_hist in clear_history()
InterTreeGram class
removed unused template
renamed python module
merged
merged
fixed help for interpolate
removed pointer functions, fixed InterTreeGram interface
added token_logprob(), renamed raw_logprob to sentence_logprob
Merge remote-tracking branch 'laptop/master' into python
unit testing for python interface
Merge remote-tracking branch 'laptop/master' into python
added some python unit tests