Also fix the download button in the toolbar pallet.
Revert "Also fix the download button in the toolbar pallet."

This reverts commit 8df6dfa93717694fc00151222908831694715cbd.
Revert "Fix download button after Bug 653881 (https://bugzilla.mozilla.org/show_bug.cgi?id=653881) landed."

This reverts commit 7c819e8a2aadd49e79557536311999b3019c38bd.
Version bump 2013.08.24.22a
Refactor overlay.js into code modules