Heine

#493678 by threexk, tic2000: fix issue with disappearing Garland tabs in Internet Explorer

#538032 by Gerhard Killesreiter, webchick: document the pcre limitation which might result in empty looking posts; include examples to fix on a Drupal deployment

#550770 by dww: bump year numbers in COPYRIGHT.txt to 2009

#470998 by cwgordon7, bleen18, Psicomante: Fix top padding for logo in Garland, so the logo is placed at the right position with the background

#215080 by robertDouglass, jaydub, drifter, Dave Reid, andypost: added index on system table's name and type column to improve bootstrap performance

#530950 by catch, andypost: use \!isset() instead of is_null() in user_access() to be consistent and more performant