soft delete, permanent delete and more
Limit warnings, number of characters etc.
Merge remote-tracking branch 'origin/3.1' into 3.1

* origin/3.1:
  more progress
  acp/attachments.php tab fixes
  acp/ban.php tab fixes
  acp/bots.php tab fixes
  acp/database.php tab fixes
  acp/email.php tab fixes
  acp/languages.php tab fixes
  acp/modules.php tab fixes
  acp/posting.php tab fixes
  translation is now 3.1
  bit of acp/search.php
  most of acp/profile.php