more zcluster support
zcluster support cleanup
Merge pull request #65 from andrew-enigma/master

more zcluster support
more dbotu: cleanups and consistencies

* prefaced methods with dbotu_
* made cmd appends a little neater

but omg this is so horrible...
small typo
Merge pull request #68 from swo/master

dbotus: progressive clustering, etc.
Merge remote branch 'upstream/master'

Conflicts:
	otu_caller.py