We removed them because of FS#2447 a while ago. But as the original
problem was most probably only caused by the gradient for the page
background and that's using a PNG now, the gradients for the buttons
should be fine. Please test to double check if this change causes
performance problems in Firefox.

Use list in acl help text, for more structure

Adds loadHelper to Syntax class and litte code reformat

This should make migrating from MediaWiki a bit easier.

Indexer: Added page and meta value rename functions

* subscription: (25 commits)
  link directly to subscription management in mails
  only use mailfromnobody for bulk mails
  added missing context for list mails
  readded mailfromnobody to subscription sending
  correctly escape diffs in HTML mails
  fixed lists in HTML mails
  simplified subscription->add() code a bit
  comment adjusted
  removed unused vars
  removed data parameter in subscription_handle_post()
  fixed tests
  some reformatting
  added compatibility function
  moved registration notification to subscription class
  fixed merge error in inc/auth.php
  consolidate more notification code in subscription class
  minor cleanup
  initialize new subscriptions with current time
  fixed subscription management
  correctly check if subscriptions are enabled
  ...

The new deletePageNoLock method is used by renamePage and avoids that
the index needs to be unlocked and locked again for deleting the page.

This was updated in the english translation a while ago, but was still
missing in some translations

Custom editors can also be loaded when not a section is given. For
example this happens on a preview click where the page is already
separated into pre, suf and text.

This reverts commit f2cb3ec7.

Turns out I was too fast merging this. I can't get PHP's bzip handler to
handle a bzip1 compressed file.

handle bz (bzip not bzip2) better