r=alecf
major fixes for the new folder / rename folder / subscribe dialogs.
we no longer use an html select for the folder picker.
now we use cascading menu popups, like the copy and move menus.
this fixes a lot of bugs, and allows pre-flighting to finally work.
our folder data source has some new properies:
CanFileMessages, CanSubscribe, CanRename, and CanCreateSubfolders
we use these to determine what cascading menu to build, what to disable, etc.
also, nsMessenger::NewFolder() and nsMessenger::RenameFolder() were changes to
take a nsIRDFResource instead of a nsIDOMXULElement. Before we were
passing through to the back end the selected xul element, now we pass
the resource in.
other cool side effects:
in the copy & move menus, you don't get the choice to file or copy to a server, on folders
in the rename dialog, you can't pick a server, on a folder
in the new folder dialog, you can't pick the imap inbox. (* more needs to be done here.)
bugs fixed: #14773, #14254, #20599, #20646
r=alecf
a couple bullet proofing fixes to prevent some crashes reported on fullcircle
r=bienvenu
