* cut in half the number of (expensive, universally hashed) selectors needed for many UA-stylesheet :link and :visited rules by implementing :-moz-any-link (bug 83484)
* remove most of EnumerateTagRules since most of it does no useful work (bug 83506)
* avoid refcounting of atoms for stack-based hash keys (bug 83511)
* add logging (turned off, except for me) to evaluate effectiveness of RuleHash
* add a namespace hash, which will be a big win once bug 35847 is fixed (bug 83497)
* avoid repeated reallocation of mEnumList by setting the initial length to a minimum of 8
* remove an unneeded variable in the beginning of SelectorMatches
* fix one case in CSS error reporting (bug 65469), not part of default build
b=83482 r=attinasi@netscape.comsr=waterson@netscape.coma=asa@mozilla.org