add. some items to next release.
add. parent class init call.
add. add_cohort_data method for loading cohorts into MySQL.  Expects a cohort name, user ID list, and project.
add. method get_cohort_id.
mod. use query_call methods to load user cohorts.
mod. Use settings to optionally include flask.ext.login module for session management.
Merge pull request #13 from rfaulkner/master

adding and generating random cohorts / flask.ext.login flag