[Mediawiki-l] Notice level fixes

[Brion Vibber]

Okay, I've integrated a couple of the fixes for accidentally used 
uninitialized  vars, but the rest is just our sloppy coding style using 
uninitialized locals as empty data. :) Rather than introducing more 
code changes to the stable release that don't alter the actual 
functioning (and probably still leave notice messages when something 
previously untested comes up), I'm going to add a switch that disables 
the E_NOTICE error reporting level.

In 1.3 we've been changing the way that parameters are read from the 
web request and cleaning up a lot of uninitialized locals and globals 
along the way; one of the goals is to make everything run cleanly with 
E_NOTICE on. If you'd like to pitch in there, it'd be best to grab the 
head branch out of CVS and join the wikitech-l mailing list.

-- brion vibber (brion @ pobox.com)