Show active site in status bar

[jng]

There are quite a few commands that act against the active site connection (eg. Load Package)

In a session that has multiple site connections, it would be helpful to show the active site connection in the status bar so the user knows which site connection a command like the Load Package command will be operating against.

Plus it would make use of the status bar, which is currently doing nothing.

[jng]

Fixed r6776