ACLs should be added to the User

Hello All,

Due to multiple requests and issues (please see [1], [2], [3]) I would like to change User object (remove status and "user level") and add Permissions.

As I can see the permissions should be
Admin == access to Admin module
Room == enter the room
Dashboard == access the whiteboard
Login == login to Om internal DB
Soap == use rest/soap calls

for example
current "regular" user will have all permissions except for Admin and Soap
current "soap" user will have soap permission only
current OAuth user will have no Login parmission

The proposed system looks extendable and should cover all current needs

I'm going to implement it in 3.0.3 and 3.1.0

Please let me know if you have any concerns/corrections

Thanks in advance

[1] http://openmeetings.markmail.org/thread/43ouivw7ysq6jorq
[2] https://issues.apache.org/jira/browse/OPENMEETINGS-1007
[3] https://issues.apache.org/jira/browse/OPENMEETINGS-986