- Patch #566494 by Dave Reid, chx, JoshuaRogers, David_Rothstein, Rob Loach, TheRec, moshe weitzman: cron image does a full bootstrap on every page request so changing to a Javascript-based solution instead. Important performance fix -- what were we smoking? ;-)

- Patch #360854 by sammys, Crell: added missing db_index_exists(), required to provide proper upgrade path from Drupal 6 to Drupal 7.

#659486 by Kiphaas7 and xmacinfo: Add back the 'loading' image to the Overlay in a way that does not kill performance.

#653940 follow-up by Damien Tournoud: Clean-up of error handling from first stab at test reporting fixes.

- Patch #631550 by sun: fixed stale and improper logic for MENU_VISIBLE_IN_TREE and MENU_VISIBLE_IN_BREADCRUMB. Added lots of code comments, and added tests.

- Patch #601150 by bleen18, eojthebrave, seutje, bganicky, sun, yoroy, JacobSingh, ivansf, drifter: improved UI for contextual links.

#653940 follow-up by carlos8f and sun: Fix fatal errors in tests and revert changes to error reporting in previous patch.