#200856 by Pancho: warning level requirement problems deserve a warning message not just a status message in update module

Although #64388 is not applicable here, a db_rewrite_sql() was missing from the counter query on the poll page, so fixed that

#200540 by theborg: fix node_make_unsticky_action() code comments and promote flag in node_unpromote_action()

#152497 by JohnAlbin, bdragon, moshe weitzman, chx and myself: several user login tasks, such as session id regeneration were not performed in all cases, so centralize this

#194010 by chx: Proper recursive dependency checking and ordering module installation in dependency order, so later installed modules can use previously installed module functionality

#195083 by Rowanw and keith.smith: menu items are not displayed on the main menu page anymore; update help text

#200334 by kkaefer: update bluemarine, chameleon and marvin themes with the current 3d Druplicon, instead of the old 2d one

#197641 by quicksketch and myself: fix drag and drop RTL issues (connector line facing and drag directions)

#197297 by DanW (as GHOP 17), and keith.smith: clean up lots of help texts, update to drag and drop functionality, drupal.module removal, etc

#195169 (actually a fix to #199161) by bjaspan: do not rely on buggy MySQL behavior of assuming empty default value for NOT NULL columns, fixing poll submission on PostgreSQL

#196953 by JirkaRybka: add target attribute to 'read more' links generated to RSS feed teasers for RSS reader usability

#199191 by Nick Lewis, Lynn: (usability) include the enabled checkbox directly on the menu item editing page too

#176282 by Desbeers: forum taxonomy was required for non-forum node types, when enabled for forum inclusion

#199640 by webernet: (usability) add option to select no taxonomy term in multiselect forms, not to rely on browser trickery

#198187 by mcarbone: resolve conflicts of n.uid and r.uid, so the node author uid takes precedence over the revision uid

#199016 by blackdog, slightly modified: default_category variable was not set in category form builder

#198231 by Alex UA and JirkaRybka: profile module had a parse error in PHP 4 and there was a weighting error with form elements

 - possible timeouts with installing/enabling lots of modules at once in core
 - enable install profiles to have more modules without fear of timeouts on install
 - bootstrap Drupal before each module load, so previously enabled modules are bootstrapped
 - let modules run their hook_requirements() (although actually calling them will be possibly fixed in another patch)

 - whitespaces at end of lines
 - indentation
 - control structure usage
 - whitespace in empty lines
 - phpdoc comment formatting

#198620 by yched: a tiny bit of optimization in menu_router_rebuild(); do not try to use the cache when resetting is asked

#198332 by catch: cache clear button was named 'cache' accidentally, but this conflicts with the 'cache' setting, so renames to 'clear'

#198461 by chx: use a simple subquery instead of iterating through all nodes and updating the term_node table one-by-one, which easily caused a timeout on sites with lots of term-node associations

#113607 by Steven, chx, hass, catch and dvessel: proper inclusion of style sheets when/where @import is used

Neither of the optimnization checkboxes were selected on the performance page, due to data type mismatch. Noticed while testing #113607.

#196043 by chx: menu items saved in the update but broken on the new system (due to coming from disabled or old modules) were not possible to delete

#197385 by chx and catch: the menu system stores only non-aliased paths, so alert users to this, when they try to save aliased paths