Issue #1436272 by Albert Volkman, colette, dandaman, coolestdude1: Add information to documentation of drupal_bootstrap function

Issue #1576300 by pwolanin: Fixed trim() expects parameter 1 to be string, array given in request_path() (line 2732 of bootstrap.inc).

Issue #598586 by grendzy, deekayen, matglas86, dawehner, Zgear: Fixed watchdog() assumes  is defined.

Issue #1372122 by klausi, sun, beejeebus, juampy, mradcliffe, tim.plunkett, cha0s: Fixed STOP the registry integrity constraint violation nightmare.

Issue #720630 by tim.plunkett, kid_icarus, tsphethean: Fix up docs for watchdog, hook_watchdog, and watchdog constants

Issue #1411114 by Albert Volkman, sun: Fixed drupal_valid_test_ua() is not statically cached on non-positive match.

This reverts commit f1a8bf13.

Issue #1371484 by catch, langworthy, makara, ArtistConk: Fixed Private properties in abstract class DrupalCacheArray.

Issue #1411592 by dadikof, Niklas Fiekas: Fixed func_get_args() can't be used as a function parameter before PHP 5.3.

This reverts commit 24c357b5.

Issue #1359326 by xjm: Fixed t() documentation does not clearly indicate that  options are documented in format_string() docs.

Issue #1006714 by Steven Jones, chx, mr.baileys, xjm, carlos8f: Fixed drupal_get_path() doesn't work for profiles.

Issue #673020 follow-up by attiks: Critical fix to Content-Language HTTP header to not cause issues with Drush.