#363013 by mannkind: Use getwd() rather than realpath(__FILE__) to determine drupal root, so we don't break symlinks.

- Patch #7458 by chx: merged the XML-RPC multicall support into xmlrpc() and use lazy-loading for the XML-RPC libraries.(performance improvement).

  up the documentation a little.

  chx: can you double-check whether the global $conf variable is secure?
       (That is, make sure it can't be send using the URL or something.)

- Patch by JonBob: for consistency and readability, add brief descriptions of each source file inside the @file comment block at the head of the file. This helps with Doxygen indexing, and also allows neophytes to see what a file does immediately on opening the source, regardless of the organization of the hooks.

- Patch #9983 by Stefan: various code style improvements.

- Patch #7458 by killes: conditionally include xmlrpc.inc.

- Changed the order of include statements.

- Improved module loading when serving cached pages.  Moshe's bootstrap patch.

- Used legend and fieldset tags for the configuration page.

- Tidied up the usage of module_invoke() and module_invoke_all().  Patch by
  Jonathan Chaffer.

- Removed a node's link ID (lid) as discussed on the mailing list.  See
  'updates/3.00-to.x.xx.mysql' for the required MySQL updates.

- Renamed some "author" fields to "uid" fields for sake of consistency.

- Fixed the coding style of some PHP files.

- Fixed the moderation queue (fairly untested though).

- Re-introduced the temporary SQL table in _node_get().

- Added a missing 'auto_increment' to 'updates/3.00-to-x.xx.mysql'.

- Added an XML-RPC server.  Modules that want to export remote procedure
  calls can implement the new 'xmlrpc' hook.

  Example:

   function mymodule_xmlrpc() {
     return array("drupal.myfunction" => array("function" => "mymodule_myfunction"));
   }