Merge branch 'fix_issue_685' of https://github.com/antgonza/qiime into fix_issue_685
set suppress warnings flag to True by default so that warnings are not printed
Merge branch 'OTUcat' of git://github.com/clozupone/qiime into clozupone-OTUcat
Fixed read-only permissions in tests.

Fixes #703.
Merge pull request #948 from jrrideout/issue-703

Fixed read-only permissions in tests.
Merge pull request #947 from jrrideout/clozupone-OTUcat

otu_cateogry_significance.py warnings now suppressed