removed unused imports
added recharge limit field to Projects
changed the verbose name to be more user friendly
created project api endpoint
changed null=True and blank=True on some fields
added tastypie to settings
did schemamigration on users
added Internal Error for threshhold reached
added functionality that checks the recharge limit
removed unused imports
replacing print statement with logger
Merge branch 'feature/issue-15-add-a-threshold-validation' into develop
Fixes to supervisor