fixed conflicts
cannot add two teams for the same match
knockout stage is working; just need some refactoring and it is ready
Deleted files used as example; set routes as it was on the beginning
refactor completed; the requirements for knockout stage are working
changed logic on the controller of the active admin to the right model
changed methods to be executed after a create to the model
fixed small confusion between Ruby and JAVA
refactored code in knockout_stage; added knockout_indext to Match table
merged from ba/tournament_crud
mend
more active admin, and manager/user registrations and invitations
fixed conflicts
cannot add two teams for the same match
knockout stage is working; just need some refactoring and it is ready
refactor completed; the requirements for knockout stage are working
refactored code in knockout_stage; added knockout_indext to Match table
fixed some minor bugs
new scope to get matches for stage
fixed small conflicts