modified to use bipy.core.sequence.DNA
modified to use bipy.core.sequence.DNA
modified to use bipy.core.sequence.DNA
modified to use bipy.core.sequence.DNA
modified to use bipy.core.sequence.DNA
Merge branch 'master' of github.com:qiime/qiime into remove-cogent-DNA

Conflicts:
	qiime/pycogent_backports/blat.py
modified to use bipy.core.sequence.DNA
modified to use bipy.core.sequence.DNA
removed dep on and refs to cogent.DNA
removed dep on and refs to cogent.DNA
removed dep on and refs to cogent.DNA
removed dep on and refs to cogent.DNA
removed dep on and refs to cogent.DNA
removed dep on and refs to cogent.DNA
removed dep on and refs to cogent.DNA
removed dep on and refs to cogent.DNA
removed pycogent deps from pynast aligner class
remove cogent deps
more clean-ups
removed unused import