Getting a list of active sessions

[Alexandre Machado]

For future readers:

In IW 15.1+ that's the new way of dealing with session list:

https://github.com/Atozed/IntraWeb/tree/...essionList

https://github.com/Atozed/IntraWeb/tree/...nLookup151

The session list doesn't use any global lock anymore, so it is not possible nor required to "lock" it.