change to checkbox for datatype selection; fix sample removal
fix id issues with checkbox
update tests to reflect changes
change select-all to include datatypes, remove proc_data_id from selected
address @wasade comments
fix int typecast
colorful county additions to search
remove unique index constraint
add select inverse
fixed sql
Merge pull request #254 from squirrelo/cleaner-sample-selection

Make study datatype selection checkboxes
Merge pull request #258 from teravest/removeuniqueindex

remove unique index constraint
Returning the type of the filepath in str instead of the id
Merge branch 'master' of github.com:qiime/QiiTa into data-id-to-str
Updating doctests
Making the raw_data_id a primary key again...
Merge pull request #259 from josenavas/data-id-to-str

Data id to str
changes for ontologies
Merge pull request #262 from teravest/ontologydbchanges

changes for ontologies
DB Modifcations for study creation

- Made two columns nullable in study table (number samples collected/promised)
- Added affiliation column to study_person to reduce likelihood of name
  collisions