Merge pull request #759 from stianst/master

KEYCLOAK-744 Document view-event and manage-event roles
KEYCLOAK-736 Database migration support"
Merge pull request #760 from stianst/liquibase

KEYCLOAK-736 Database migration support"
KEYCLOAK-736 Fix class-path issues
Merge pull request #761 from stianst/liquibase

KEYCLOAK-736 Fix class-path issues
KEYCLOAK-753 Add 'username:' prefix to remember me cookie to prevent issue with old cookie