[Mediawiki-i18n] Nogomatch

[Rob Church]

Heads up! I've replaced the "nogomatch" message with "noexactmatch".
This moves the evil magic colon into the messages themselves. The
message no longer accepts a $2 parameter (since it's not needed).

The commit updated all message files as far as possible, but I'd
appreciate it if you could give your language the once-over when you
next submit a patch.

Thanks,


Rob Church