Add test for gmm-based clustering algorithm itself
implement remove method in random_unlearner (refs #60)
Remove linear_mixable_helper's default constructor.
Add a necessary null check and Remove unnecessary null checks.
Spcify pficommon's license on README.
Fix English expression.
add const to variable
Merge pull request #81 from gwtnb/pficommon-license

Add pficommon's license description to top-level README.
Merge remote-tracking branch 'origin/develop' into add-gmm-test
Add gmm test for update with empty list
Merge pull request #80 from gwtnb/072-remove-linear-mixable-helper-default-constructor

Remove linear_mixable_helper's default constructor.
fix error message in gaussian_normalization_filter (fix #85)
Merge pull request #79 from jubatus/fix-60-unlearner

implement remove method in random_unlearner (fix #60)
Merge pull request #86 from jubatus/fix-85

fix error message in gaussian_normalization_filter (fix #85)
Merge pull request #66 from hido/add-gmm-test

Add test for gmm-based clustering algorithm itself
bump version 0.0.6->0.0.7