Another sweep from the optimization monster.
template: rewrote parts of tplWikiFormat to do faster validation and less eval()ing
template: sidebar is now cached for anonymous users (thanks to Richard Greene for the suggestion)
dbal: rewrote SQL query parser, much cruft taken out
template: made tplWikiFormat depend more on RenderMan
common: moved some lesser-used includes out of main loading sequence
Expect a lot of changes to AES code in the next commit!