Updated ANOVA to use numpy instead of Numbers
Major modifications

Created a new script ocs.py which will ultimately replace otu_category_significance.py. It now includes the following tests: kruskal_wallis, g_test, t_two_sample, mc_t_two_sample, mann_whitney_u, bootstrap_mann_whitney_u, ANOVA

Added tests for kruskal wallis and changed the way output formatting was being done. Ultimately we will be splitting otu_category_significance.py into two functions, this is the first of those functions.
Changed how all tests were called.

Introduced new function to run all tests. Gives control of previously hidden parameters like num_permutations for the permutation tests and avoids code duplication.
added documentation
Changed library to avoid syncing error.
Actually fixed...
Merge branch 'ocs_collab' of https://github.com/wdwvt1/qiime into ocs_collab
New test code for ocs functions + small bug fix in pmf
Major modifications

Added otu_gradient_correlations.py which will handle the OTU to mapping file gradient correlations. Made Kendals-Tau and Spearmans Rho available for this test. Broke apart larger functions for running correlations into smaller subsets to avoid a bunch of problems.
Merge branch 'ocs_collab' of https://github.com/wdwvt1/qiime into ocs_collab
Moved some libraries and altered otu_gradient_correlation.py
Modified library locations.
Documentation update in pycogent_backports/test.py
test code for run_ocs_test
minor doc changes
Added minor changes that will reduce future code bloat.
Merge branch 'ocs_collab' of https://github.com/wdwvt1/qiime into ocs_collab
Major commit to add script usage examples and other changes

Addressed minor errors in a host of places and added documentation. Also finalized paired t test functionality
Deleted otu_category_significance.py
Finished run_ocs_test unit tests, mod bon_corr to return list