migrations, canned_queries, and group_management fixed
migration class added
updated cohort.php and group.php to insert cohort upon group creation
Merge branch 'master' of github.com:ilios/ilios into ready_to_update_group_and_cohort_models
set migration counter to '20' in data_population
Merge branch 'master' of github.com:thecoolestguy/ilios into ready_to_update_group_and_cohort_models
Merge branch 'master' of github.com:ilios/ilios into ready_to_update_group_and_cohort_models
Merge branch 'master' of github.com:ilios/ilios
Merge branch 'master' of github.com:thecoolestguy/ilios into ready_to_update_group_and_cohort_models
added FK constraints to migration table, cleared out orphaned records, changed cohort_id column to be NOT NULL
removed self-reference of group table from subquery
upgrade and downgrade migrations now working
fixed typo in code comment. minor indentation/whitespace corrections.
added cohortId argument to makeNewRow call
Merge branch 'ready_to_update_group_and_cohort_models' of github.com:thecoolestguy/ilios into ready_to_update_group_and_cohort_models
removed extraneous cohort_master_group call
adjusted order in which tables are created to acommodate for new dependencies.
Merge pull request #294 from thecoolestguy/ready_to_update_group_and_cohort_models

Ready to update group and cohort models