Initial commit

Note that this commit ports over the contents of the previously existing
repository.

Fixes #59
Merge branch 'master' of https://github.com/biocore/qiita
add command_data_type table
populate table
fix error catching in sql handler
populate table and test
remove test.txt
change try except checks in sql handler
Merge pull request #183 from squirrelo/commands-datatype-table

Commands datatype table