Trying to set up logic for dealing with users joining leagues
Completed basic league data model functionality

- Users can create new leagues and join existing leagues with a passcode
- Replaced the usage of passwd.me web api request with local
randomstring call
- Added ZeroClipboard for click to copy behavior
- Removed unnecessary middleware when joining league
Completed basic league data model functionality

Added Validation for join passcode entry
Merge pull request #2 from toksfifo/league-data-model

League data model