Add UI for "overrideInstantApply" preference
(#24)
Add button to reopen window
(#24)
Use "help" cursor for menuitems with tooltip
(#24)
Simplify: use <deck> to automatically set width for "Make absolute/relative" buttons
Use cancelDialog() to close window (to ask about unsaved changes)
(#24)
Fix: savePrefpanes() not called after checkSaved()
Hide UI for "overrideInstantApply" preference in Firefox 1.5 and 2.0
(doesn't work in these versions)
(#24)
Tweak previous commit: add shortcut for this.ut.fxVersion