- add new columns attend, lastchange, changedby - set player_id, event_id to be primary key
- add new columns attend, lastchange, changedby
- set player_id, event_id to be primary key


git-svn-id: 526f3b90ad6d9b1dfe840af828070ca3d99521ac@4973 d2cacbed-c0f6-0310-851a-9dad52fc623a

johannes85/core