API: initially commit for error handling
ENH/API: callbacks set/get pushed to object
API: error profile support
Adding test for writing an empty HDF5 table
Fixing to_hdf5
addressing self comments
Adding an empty biom table for tests
Adding a test for parsing empty HDF5 tables
Addressing @adamrp's comments
MAINT: removed biom import
Merge pull request #525 from wasade/empty_table_support

API: initially commit for error handling
Merge branch 'master' of git://github.com/biom-format/biom-format into empty-hdf5
Fixing the test
Merge pull request #527 from josenavas/empty-hdf5

Empty hdf5
Merge pull request #526 from wasade/issue524

MAINT: removed biom import
DOC: last updates to 2.1 changelog
Merge pull request #528 from wasade/changelogupdates_21

DOC: last updates to 2.1 changelog
Setting release date
Setting release version for doc
Bump version number to 2.1