Merge pull request #2 from brianolson/v0.3.0-dev

improve make_stream_item/make_stream_time time handling
adding --len as new option on dump, and adding tests
making dump show all fields on a single line for each StreamItem
making .body correctly for different versions
exposing mention_type in tokens
changing version.py to comply with PEP 440
changing version.py to comply with PEP 440
Don't clean before testing

Clean deletes the generated thrift files
Merge branch 'v0.3.0-dev' of github.com:trec-kba/streamcorpus into v0.3.0-dev
add flush() method to Chunk
add slow manual test (when module called as main) to check time roundtrips through string format for data integrity
add --smart-dump which pretty-prints streamcorpus chunks.
fix --stats
pure python build/install using setuptools
Makefile remains as passthrough to setup.py for convenience
Merge remote-tracking branch 'origin/v0.3.0-dev' into v0.3.0-dev

Conflicts:
	py/Makefile
	py/src/streamcorpus/dump.py