#201536 by chx: centralizing permission checking code in node revision handling, removing lots of duplicate code

 - 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

#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

#194166 rollback and additional comments by chx: developers can modify menu editing behavior with hook_form_alter(), no need for menu API hacks, which were half done anyway

#164330 follow up by webernet and Crell: remove XHTML invalidating ID attribute on links, where the classes are enough to identify them

#177497 by chx and Desbeers: revive Drupal 5's menu_set_location() functionality by introducing menu_set_item() (for consistency in function naming), thus fixing a regression in the current development code. Also fixing some misuse of menu_set_location() by using drupal_set_breadcrumb() instead.

#177497 by chx: revive Drupal 5's menu_set_location() functionality by introducing menu_set_item() (for consistency in function naming), thus fixing a regression in the current development code

#184867 by deekayen, catch and keith.smith: fix some spelling errors in our source code and messages printed

#184022 bx chx and merlinofchaos with documentation improvements from me: %index and %map menu path placeholders for Views module to be able to use the new menu system

#180588 by merlinofchaos: run tabs through theme('menu_item_link') compared to just l() directly, so they can be properly themed

#181564 by Crell: add first and last CSS classes to menu tree lists and themed item lists for themers to use

#170514 by pwolanin: block and page cache should be cleaned when a menu item is changed (saved, deleted) or the menu router is rebuilt

#179474 by JirkaRybka and pwolanin: proper depth counting for menu tabs when parents are missing inbetween

#157510 by pwolanin and chx: search module needs menu tail arguments (arbitrary 'directory' looking parts)

- Patch #145218 by profix898, bennybobw, Crell, forngren et al: use href instead of @import for CSS.

#166593 by hswong3i: move literal values out of some core queries to support cross-database compatibility (ie. better SQL parsing and altering options)

#160168 by kkaefer and pwolanin: restore lost Drupal 5 functionality of being able to set primary and secondary links differently

- Patch #163191 by hswong3i: removed db_num_rows() for compatibility with Oracle and DB2.  Also a performance improvement. (Correct version this time.)