Reverted previous changes and removed FUPS_VERSION.

The filter was only applied when common.php itself was
committed, making it kind of pointless. Git isn't really
capable of or designed for changing version numbers
automatically, so best to do away with it altogether.
Added status updates for commandline invocation.

Also added a -q commandline option to inhibit these updates.

Also fixed up the status updates for #posts and #threads.

Also added a new truth interpretation for the "debug" options file
setting, in addition to "true": "1".