Revert "Issue #1367000 by chris.leversuch, oriol_e9g, David_Rothstein: Clean up API docs for php module."

Sorry, we're over thresholds atm. Hopefully can commit this soon.

This reverts commit 4303ae6e.

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

Issue #1309742 by rocket_nova, Albert Volkman: Add inline comment clarifying use of language_list() in system_date_format_save().

Issue #955848 by anrikun, Kars-T, catch, chx, casey, sun: Fixed When editing an existing node with a link, the link itself is listed in 'Parent item': menu_parent_options() needs some rewriting.

Issue #1214344 by wiifm, msonnabaum, oriol_e9g: Fixed 'misc/progress.js' is not being included when 'Aggregate JavaScript files' is used.

Issue #131737 by malc0mn, pillarsdotnet, scor, xjm, nvanhove, oriol_e9g, mrfelton, aspilicious, Pancho, v1nce, dhthwy: Fixed Ensure that the Return-Path is set when sending mail on both Windows and non-Windows systems.

Issue #1371938 by yched, Everett Zufelt, xjm, casey: Fixed hook_field_delete() no longer invoked during field_purge_data().

Issue #1384224 by philbar, Plazik, oriol_e9g: Fixed Resize Site Logo in Seven Theme Maintenance Pages.

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

Issue #1397882 by sun: Fixed system_theme_settings_submit() does not properly clean up submitted form values.

Issue #1181750 by Everett Zufelt, sun: Fixed Removal of 'Hidden' option in comment settings form may break programmatic form submissions.

Issue #1407028 by jhodgdon, arianek: Remove arianek from Maintainers.txt. We will miss you. :) Thanks for all of your awesome work! :D

Issue #1338110 by aaron.r.carlton, oriol_e9g: Fixed remove the protected variable () if it's not used in tracker.test.

Issue #1399896 by xjm: Fixed testCommentNewCommentsIndicator() is inside CommentHelperCase and therefore gets run repeatedly.

Issue #1336308 by kathyh, pjcdawkins, meshkinsoft: Fixed wrong usage of function t in system_menu().

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

Issue #939880 by amateescu, marcingy: Fixed Poll Module throws PDOException when creating poll content.

Issue #1376502 by TR, vitalsouto: Fixed Code cleanup: Removed empty PHP blocks from templates left over from git migration.

Issue #1295546 by c31ck, marcingy, amateescu, xjm: Fixed Weight and number of votes not getting saved when updating a poll.

Issue #1344752 by pflame, aspilicious, JacobSingh: Fixed Drag and Drop of shortcuts between Enable and Disable Does not respect the Shortcuts Limit.

Issue #1227396 by chris.leversuch, jhodgdon: Document that hook_node_access() is not called on node listings.

Issue #987472 by damien_vancouver, OnkelTem: Fixed search.module doesn't consistently support multibyte characters.

This reverts commit 24c357b5.

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

Issue #1359710 by xjm, pwolanin: Fixed taxonomy_menu() passes invalid arguments into taxonomy_form_term().

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