slim down the PyPI distribution
PEP8
changed default sequence length to extract to 200
minor pep8 fix in test_scripts
Merge branch 'master' of github.com:ged-lab/khmer into update/extract-long-seqs

Conflicts:
	ChangeLog
fixed ChangeLog per @mr-c
Merge pull request #486 from ged-lab/update/extract-long-seqs

updated extract-long sequence to extract 200 bp sequences by default
Merge branch 'master' of github.com:ged-lab/khmer into fix/slim

Conflicts:
	ChangeLog
Merge pull request #481 from ged-lab/fix/slim

slim down the PyPI distribution
Merge remote-tracking branch 'origin' into cleanup/filepy2

Conflicts:
	ChangeLog
Merge branch 'master' of github.com:ged-lab/khmer into cleanup/filepy2