ENH: added function to group samples by metadata categories
TST: fixed bug
TST: modified expected result type to be more useful
TST, ENH: cleaned up code, tests pass, fixes #1678
MAINT: removed unnecessary code
ENH: updated interface to include additionally useful information
DOC: added function documentation
MAINT: fixed error in last commit
TST: expanded tests
ENH: added script for replicate sample collapsing
ENH: added (currently untested) function separating out sample metadata collapsing
DOC: added usage example
TST: added test files
ENH: extremely ugly first step at collapsing mapping file
Merge branch 'issue-1716' into issue-1678-script
Merge branch 'master' of github.com:qiime/qiime into issue-1678
MAINT: fixed typo
Merge branch 'master' of github.com:qiime/qiime into issue-1678-script
Merge branch 'issue-1678' into issue-1678-script
MAINT/TST: moved some code around, added some new tests