Adding sorting code
Initial gradient classes with tests
Merge branch 'master' of https://github.com/biocore/bipy into gradient
Merge branch 'master' of https://github.com/biocore/bipy into gradient
Partially adding functionality
Stubbing tests
Adding pandas to setup
Add make_groups functionality
Merge upstream master
Adding tests for make_groups
Adding some tests
Adding tests for normalize_samples
Adding tests for make_groups
Adding tests for weight_by_vector
Fixing weight_by_vector
Solving merge conflict
Finishing up work
Cleaning up code
Merge branch 'master' of https://github.com/biocore/bipy into gradient
Adding documentation