Issue #93854 by pillarsdotnet, Steven Jones, Dave Reid, ericduran, xjm, das-peter, e2thex, axel.rutz, mstrelan, mikestefff | moonray: Fixed Allow autocompletion requests to include slashes.

- Patch #172755 by c960657, klausi: autocomplete triggered when switching fields, 'undefined' written to field.

- Patch #444344 by kkaefer, sun, Rob Loach: this change introduces a jQuery .once() method which streamlines the way behavior functions work. Previously, we had to manually ensure that an element is only initialized once. Usually, this happens by adding classes and selecting only those elements which do not have that class. However, this process can be separated out into a jQuery ‘filtering’ function which does all the grunt work.

#544418 by merlinofchaos, sun, drewish, quicksketch, et al: Integrate CTools AJAX framework with Drupal to extend (and replace) existing ahah framework. Everything about AJAX/AHAH is more betterer now.

- Patch #310139 by pwolanin, c960657: drupal_query_string_encode() should not call drupal_urlencode().

#125030 by kkaefer, quicksketch, dvessel, Steven, and John Resig: Allow compatibility with other JavaScript libraries.

#201141 by yched: instead of 'HTTP error 200' messages when a PHP error occurs, actually display the PHP error message

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

#118026 by kkaefer with fixes from myself: JavaScript translation support and script.js as a default theme JS file to use, if found

- #88642: Change drupal.js function separators to semi-colons.

  Comment from Steven: It does this by redirecting the submission of the form to a hidden <iframe> when you click "Attach" (we cannot submit data through Ajax directly because you cannot read file contents from JS for security reasons).  Once the file is submitted, the upload-section of the form is updated.  Things to note:

    * The feature degrades back to the current behaviour without JS.
    * If there are errors with the uploaded file (disallowed type, too big, ...), they are displayed at the top of the file attachments fieldset.
    * Though the hidden-iframe method sounds dirty, it's quite compact and is 100% implemented in .js files. The drupal.js api makes it a snap to use.
    * I included some minor improvements to the Drupal JS API and code.
    * I added an API drupal_call_js() to bridge the PHP/JS gap: it takes a function name and arguments, and outputs a <script> tag. The kicker is that it preserves the structure and type of arguments, so e.g. PHP associative arrays end up as objects in JS.
    * I also included a progressbar widget that I wrote for drumm's ongoing update.php work. It includes Ajax status updating/monitoring, but it is only used as a pure throbber in this patch. But as the code was already written and is going to be used in the near future, I left that part in. It's pretty small ;). If PHP supports ad-hoc upload info in the future like Ruby on Rails, we can implement that in 5 minutes.