replaced call to skbio's correlation function with call to identical functionality from scipy, partially addresses #67
fixes #353
fixes #352
fixes #177
fixed some imports
fixed bad doctest import; fixes #205
some doc fixes
doc edit
removed code that will be replaced with scipy calls; partially addresses #67

most, but possibly not all, of this functionality is available in SciPy. We
ideally want to pull that code from SciPy rather than maintain ourselves.
adds from_linkage_matrix to TreeNode
Merge branch 'master' of github.com:biocore/bipy
pep8 and sphinx
replaced skbio anova call with scipy anova call. we love you scipy
added docstring
fixed problem with doc string

when we switched over to the scipy one-way ANOVA this doc test p-value started
coming back as nan. it turned out that this was right, because there was no
within-group variance in the groups being compared and our ANOVA wasn't
handling that correctly. this is an example of why we should make a concerted
effort to use scipy when possible for our stats.
Merge pull request #360 from ebolyen/issue346

adds from_linkage_matrix to TreeNode
Merge branch 'master' of github.com:biocore/bipy
Merge pull request #357 from gregcaporaso/master

various small issues in prep for 0.1.0
Sequence iterator clean-up

no cog yay
Merge pull request #361 from ElBrogrammer/brah-iter-fix-brah

Sequence iterator clean-up