Added rails_admin gem
Added simple_form gem
Added devise authentication method, with login, sign_up, logout, password recovery.
Added message and alert flash view in the main layout
Added cancan authorisation gem, but not configured
Created scaffold for model players_tourneys
Now authentication like admin is required when accessing admin module
added tourney_player relation
Users can only manage its own tourneys
Users can only manage its own rounds and matches
Player listing in each tourney
Add a list of inscribed players to tourney view
Tournament ranking
Removed results
Added match validations and rankings
Seed first round
Seed first round
Seed normal rounds with one by one method
Solved infinite loop seeding too many rounds
create round and seed it.