Merge branch 'develop' into feature/issue-11-intergrate-with-gopher-airtime-API
Merge branch 'feature/issue-11-intergrate-with-gopher-airtime-API' into develop
Merge branch 'develop' into feature/issue-15-create-models-for-SendAirtime-and-AirtimeApplication
updated models to remove validation
added initial data for fixtures
updated send airtime action to update database
created tasks to send the sms
moved task
did schemamigration on gopher model
added celerybeat schedule