This is basicly a merge of r84386 & r84491, see their commit messages for
more details.
r84386 makes wikilinks nicer by updating the URL forge implemented by r2621
r84491 fix an issue with the (un)?watch links. getParamValue should not be
used to guess 'title' or 'action'
This patch mostly impact Title:getLocalUrl() with two changes:
1) Abstraction:
$wgActionPath related code is now in Title::resolveActionPath(). It now
interprets query parameters using an array which is easier to read than
playing with a regexp and the evil $matches[].
2) Tweaking:
Change the 7 years old (r2621) URL forge:
"{$wgScript}?title={$dbkey}&{$query}"
=> /w/index.php?title=FOO&q=2
To a nicer
"str_replace( '$1', $dbkey, $wgArticlePath )"
=> /wiki/FOO?q=2
Additional changes:
* Parser tests were modified to reflect the changes.
* PHPUnit TitleTest amended to test getLocalUrl() (add more!!)
* When using wgActionPaths, makes sure the 'view' action is a sane default
