Added ability to site admins approve or reject awaiting membership requestsa
Added status attribute to the TeamMembership model and added save method so everytime a new membership request is being  saved we would send notifications to the team captains
Modified the list of parameters being passed to the notification backend
Add a new task notifications to team captains about new join requests.
Added Join Team button to the team page for certain users
Added all awaiting memberships to the team page
Added logic to handle new requests to join teams
Added a new endpoint for join team button
Added a custom teammembership manager
Migration file for a new status attribute for TeamMembership model
Templates for join request notifications
Merged with master branch
Renamed the latest migration file
Merged with master branch and resolved the conflict
Updated the way we handle awaiting and approved memberships.
Removed the wrong import
Resolved the manager issue
Merge pull request #54 from ahgl/feature/join_team_button

Feature/join team button