You can now overwrite values returned from .data() with .bind("getData") - returning a value will override any bound value on that element.

Tweaked the .data() event triggering - it now triggers a single 'setData' event, passing in a key value pair of what was changed.

Added $().data(), $().removeData(), and .bind("click!"). .data() and .removeData() handle namespaced data, .data() triggers a "set-KEY" event on all modified elements, and .bind("click!") only triggers a click (and no namespaced events).

De-eval'd selectors and the various DOM methods (will marginally help our speed and make us more compatible with projects like Caja and Adobe AIR). Left a selector eval in for backwards compatibility support of selector plugins.

Fix #2184 by using the jQuery.clean() function instead of a direct innerHTML assignment in the clone() function for IE.

Fixed #2174 by removing the s.dataType == "json" check for possible cross domain since it causes absolute urls to use a <script> tag ajax retrieval even though absolute urls work fine for retrieving local data.  Cross-domain jsonp will still work since the $.ajax() function actually changes the s.dataType to "script" before it reaches this check in cases where it is s.dataType == "jsonp" or s.dataType == "json" and a parameter has =? in it.

Just added support for Accept headers in Ajax requests - defaults to the correct header depending on the type of request that's being performmed. (Bug #1986)

Fixed an edge case in show() where the css says the display should be none.  In that case force 'block' so it will actually show.