qiime/qiime — pull request #1186 by jrrideout (2013-11-10 20:41:44+00:00)
Title: Fix filename extensions in alpha_diversity.py batch-processing output

When invoked in batch-processing mode, the output filenames now have a .txt extension instead of .biom. Fixes #1147.

I didn't run the full unit test suite locally, but tests/test_workflow/test_downstream.py passes (per @gregcaporaso's suggestion).