Merge branch 'release-0.8.7'
word2vec unittests
faster word2vec tests without cython
Added CsvCorpus.
fix typo in unittest
Merge remote-tracking branch 'zajac/develop' into zygmuntz
guess CSV format automatically
* remove SvmLightCorpus leftovers
Merge pull request #1 from piskvorky/zygmuntz

CSV clean up
Merge pull request #129 from zygmuntz/develop

Added CsvCorpus.
update CHANGELOG
* change order of testimonials
up version: 0.8.8
add runtime warning when training word2vec without cython installed
bump setup.py to 0.8.8
Merge branch 'release-0.8.8'
Merge branch 'develop' into add_perplexity

Merge in upstream changes
Changed perplexity block comment to a single line