add version as table attribute
always write current version
Adding two more parameters to tell the converter that the table is collapsed, either by samples or observations
Changing the optparse interface to handle the new parameters to the convert command
Adding tests for converting collapsed tables
Merge pull request #515 from josenavas/update_convert

Convert now can convert old JSON collapsed tables to new HDF5 collapsed metadata format
REL: removing unused scripts
DOC: changelog mention
Merge pull request #518 from wasade/drop_dead_scripts

Drop dead scripts
add version tuple to __init__.py
change self.version ot self.format_version
Merge pull request #512 from teravest/issue510

ENH: Add version as attribute of Table
Adding format 2.1 spec
Updates format_version numbers on example tables
Merge pull request #522 from adamrp/bump_version_on_example_tables

Updates format_version numbers on example tables
ENH: version support
Merge branch 'master' of github.com:biocore/biom-format into issue509
Merge branch 'master' of git://github.com/biom-format/biom-format into issue517
Updating the table dump to the latest table version
ENH: Validator validates 2.1