MiasPatch: Check alocalmod.rs5 against communitypatch.rs5 as well

If communitypatch.rs5 exists, use it to check if alocalmod.rs5 is up to
date instead of environment.rs5

This will report that the community patch is 'not installed' when in
fact it is, which is a bit annoying, but I don't want to add the
complexity to the code to report the truth. Besides, the updated version
*IS* 'not installed', so it's not like it's a total lie either.