Issue #1090270 by ygerasimov: URI decode on query variables to ensure query variables with non-standard characters work.

#514128 by dylanvaughn: Use of for (i in foo) for arrays in javascript fails if other software is modifying the Array prototype.

#685938 by dereine: Sync preview widget to current tab to reduce WTFs when previewing the wrong display.

Clean up admin.inc because it had invalid line endings
Fix a notice when using ajax and pagers
Fix use_ajax which had lost its submit handler and could not be changed

#636988 by Steve McKenzie: Wrong ajax data could be sent in rare circumstances when using AJAX paging.

#366250 by sirkitree: Fix deprecated jquery selectors so we can work with jquery 1.2.6 as well as 1.3.2.

#353515: Many characters could get incorrectly translated in exposed filters combined with ajax tablesorting.

Views exposed forms might not get seen by javascript if they had multiple _ in the view name or display id (by Steven)