Issue #1869642 by kerasai: Fix placeholder documentation in batch API progress message
Issue #1629994 by oadaeh, Aron Novak, yurtboy: Reference correct RFC in mail functions documentation
Merge branch '6.27-security' into 6.x
Now onto Drupal 6.29-dev
Issue @2062127 by rhm50, jlindsey15, joachim: Fix documentation of system_requirements() to say it is a hook implementation
Merge tag '6.29' into 6.x

6.29 release

Conflicts:
	CHANGELOG.txt
	modules/system/system.module
Drupal 6.30 fixes
Merge branch '6.30-security' into 6.x
Now onto Drupal 6.31-dev
Issue #1536750 by sandipmkhairnar, perusio: Fix docs for drupal_goto()
Drupal 6.31
Merge tag '6.31' into 6.x

6.31 release

Conflicts:
	CHANGELOG.txt
	modules/system/system.module
Issue #2276469 by decibel.places: Fixed robots.txt syntax checking link broken.
Issue #2273337 by vegantriathlete, amitgoyal, ducktape: Fix up docs for db_add_field functions
Issue #2290435 by PQ: Fix broken link in robots.txt file
Drupal 6.32
Merge tag '6.32' into 6.x

6.32 release

Conflicts:
	CHANGELOG.txt
	modules/system/system.module
Merge remote-tracking branch 'drupal.org/6.x'

Conflicts:
	CHANGELOG.txt
	includes/common.inc
	includes/form.inc
	modules/system/system.module

mkalkbrenner: fixed api of function page_get_cache()