#313213 by maartenvg, Gábor Hojtsy: Add a 'title' attribute for permissions to allow for localization of permission names

- Patch #310212 by justinrandell, catch, et all: killed  in _user hook, as well as two small kittens.

#125315 by chx, sun, Gábor Hojtsy, drumm, and friends: Add #input_format FAPI property that can be used by WYSIWYG editors. WOOHOO.

- Patch #225450 by Crell, chx, bjaspan, catch, swentel, recidive et al: next generation database layer for Drupal 7.

  et al.  Can you say 'registry'?  Drupal now maintains an internal registry of
  all functions or classes in the system, allowing it to lazy-load code files as
  needed (reducing the amount of code that must be parsed on each request). The
  list of included files is cached per menu callback for subsequent loading by
  the menu router. This way, a given page request will have all the code it needs
  but little else, minimizing time spent parsing unneeded code.

- Patch #245504 by catch, David_Rothstein, Freso, et al: removed the throttle module from Drupal core.

- Patch #245115 by kkaefer, John Morahan, JohnAlbin et al: after a long discussion we've decided to make the concatenation operator consistent with the other operators.

- Patch #232037 by pwolanin and flobruit: block_list() renders all blocks even on 404.  Refactored the code a bit so ithere is a split between loading and rendering of blocks.  By doing so, we are no longer forced to render _all_ blocks if we know they won't be shown.  There is more room for improvement here, I believe, but this is an incremental improvement.

- Patch #30984 by webchick, keith.smith, kkaefer, Crell et al: provide descriptions for permissions on the permission administration page.

#157652 by beginner, Steven Merrill and killes: block_user() had a global user object and a user parameter colliding

#211742 by theborg, chx: detect and solve the problem when blocks are assigned to invalid regions (happens in theme development)

#202425 by keith.smith: standardize reference to block placement page as 'blocks administration page' to avoid any confusion

#192779 follow up by Lynn: only show enabled themes on block admin page *and* the admin theme (which might not be enabled)

#199890 by gaele, keith.smith: improve block module help text, include description of drag and drop and better help about the throttle functionality; also comes in smaller chunks which makes it easier to translate and update later

#199832 by theborg, Pasqualle: block title defined as NOT NULL, so requires a default empty string even if not set (fixes a theme notice but also a pgsql error)

#192779 by gaele: (usability) only show theme tabs on the blocks page for enabled themes, for consistency with the theme settings page

#200069 by keith.smith: new standard for 'more information' links in module help texts, as the handbook we referred to before was renamed

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

- Patch #163246 by keith smith, freso, O Govinda, catch, webchick et al: fixed minor spelling issues and fixed spacing issues.

#80963 by chx with multiple contributors: remove deletion and database lock based block rehash code, replace it with simpler updates

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

#183690 by Wim Leers: (developer improvement) abstract path matching to drupal_match_path() from block listing, so this gets reusable when path based matching is required

#180897 by sun and dvessel: fix various XHTML validity issues in Drupal by closing unclosed tags, avoiding empty table containers, and so on

#157752 by quicksketch: extend AHAH functionality to most types of form elements, without writing JavaScript. Also AHAH enable the blocks admin page.

#167284 by Heine and pwolanin: proper field type placeholders in IN() queries, setting a best practice to avoid vulnerabilities

- Patch #168028 by dvessler, merlinofchaos, pwolanin et al: both theme functions and templates may need include files. Flush your caches.