BLD: setup is specific on scripts
BUG: to_json didn't handle empty case
DOC: changelog mention
BUG: compute stats didn't handle empty table
DOC: changelog mention
Merge pull request #574 from wasade/issue_571

Issue 571
Merge pull request #572 from wasade/specify_scripts_setup

BLD: setup is specific on scripts
BUG: Update miniconda version in .travis.yml
Merge pull request #575 from ElDeveloper/condwhat

BUG: Update miniconda version in .travis.yml
Merge branch 'master' of github.com:biocore/biom-format into add_metadata_noreq_h5py