Bump version to 0.0.15

hmmlearn >= 0.3.0 (#98)

* trying hmmlearn 0.3.0

* 0.0.14

bump version to 0.0.12 (#74)

bump version to v0.0.11

removed explicit dependence on TF

bump version to 0.0.9

bump version to 0.0.8

Merge pull request #24 from marl/verbosedocstrings

Verbose option in CLI + docstrings

bumping version to 0.0.6

Merge pull request #16 from marl/zeropadding

Add support for padding and set default behavior to True. Fixes #15