Issue #800434 by pillarsdotnet, plach, bart.hanssens: Added drupal_mail(), allow hook_mail_alter() implementation to cancel mail.

Issue #1397890 by sun: Fixed DrupalWebTestCase::assertFieldByName() outputs bogus assertion message when no  is passed.

Issue #1376164 by sun, oriol_e9g: Fixed Format SimpleTestFunctionalTest description according to standards.

Issue follow-up #1007830 by Damien Tournoud, basic: Fixed Nested transactions throw exceptions when they got out of scope.

Issue #1380660 by aspilicious, loganfsmyth: Fixed field_available_languages() static cache never cleared.

Issue #1373634 by oriol_e9g, sun: Fixed Installation profile is not installed and not registered as module, unless identical to parent site.

Issue #866292 by marcingy, ygerasimov, quicksketch, attiks, furamag: Fixed '0' not displayed as checkbox / radios options (nor as any element #title).

Issue #1366232 by sun: Fixed drupalCreateUser() breaks if testing site/profile does not install Comment module.

- Patch #1258000 by chx, xjm, bfroehle: SelectQuery::countQuery() inappropriately removes SQL expressions.

This reverts commit 06f31080.

Issue #479368 by Heine, Roger Saner, xjm, mcarbone, keichee, asimmonds: Fixed Create RFC compliant HTML safe JSON.

Issue #1212992 by catch, xjm, chx, beejeebus, BTMash, bfroehle: Fixed major bug - Prevent tests from deleting main installation's tables when parent::setUp() is not called.

- Patch #765860 by effulgentsia, dww, dereine, mikey_p, xjm, sun, sven.lauer: drupal_alter() fails to order modules correctly in some cases.

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

Issue #1049284 by xjm: Fixed Running update.php to flush caches no longer works unless there are updates pending.

Issue #1011614 by catch, pillarsdotnet: Fixed Theme registry can grow too large for MySQL max_allowed_packet() and memcache default slab size.

Issue #1041906 by Monochrome, bobodrone, ELC, ctibor, DamienMcKenna: Fixed Taxonomy term menu link title overrides term page title.

Issue #1183430 by TR, oriol_e9g: Fixed t function strings should not have whitespaces at beginning or end.

Issue #1292922 by loganfsmyth, plach: Fixed EntityFieldQuery count query broken for translatable fields.

Issue #1205138 by pwolanin, Dave Reid: Do not blow away non-MD5 password hashes in user_update_7000().

Issue #1295456 by pillarsdotnet: Fixed Add missing '$' character in docblock for DrupalWebTestCase::drupalGetNodeByTitle() function.

Issue #520106 by JohnAlbin, pillarsdotnet, chx, sun, Nick Lewis, drifter, Mark Trapp: Fixed No way to dynamically set active trail.

Issue #1226796 by sun, catch, Damien Tournoud: Fixed Not equal operator '!=' is not supported by all databases, must be '<>'.

- Patch #952772 by oriol_e9g, mdupont, bleen18, idflood: theme_html_tag() optional value not really optional.

Issue #799932 by David_Rothstein, Stefan Freudenberg: Fixed Simpletest HTTP authentication credentials should use the 'password' form element.