Allow to validate with functions and static methods too?

Signed-off-by: emanuele <emanuele45@gmail.com>
Add a primary key to notifications instead of an ugly index of 5+ columns - fixes #954

Signed-off-by: emanuele <emanuele45@gmail.com>
Fix upgrade too

Signed-off-by: emanuele <emanuele45@gmail.com>
Reordering and standardization of the sql files

Signed-off-by: emanuele <emanuele45@gmail.com>
Merge pull request #969 from emanuele45/notif_db

Notifications with primary key