Adds the investigation_type column to the raw_data
Merge branch 'master' of https://github.com/biocore/qiita into raw_data_investigation_type_column
Add investigation_type property to raw_data
Fix incorrect investigation_type for populate sql
Add test to check for fail - thanks @ElDeveloper!
Get investigation_types from DB on create_study
Merge pull request #355 from adamrp/raw_data_investigation_type_column

Adds the investigation_type column to the raw_data