Don't default to recent files in Open/Save dialogs

[Sergey "Shnatsel" Davidoff]

We should drop GNOME's behavior of defaulting to recently used files for Open/Save dialogs:
 * In Open dialog it's just a workaround for lack of direct file handover mechanism in GNOME, which we have (Contractor).
 * In Save dialog defaulting to recent makes no sense since you can't save there.

[Sergey "Shnatsel" Davidoff (shnatsel)]

http://askubuntu.com/questions/63202/can-i-stop-apps-from-selecting-recently-used-by-default-in-file-chooser-dialog and http://askubuntu.com/questions/63202/can-i-stop-apps-from-selecting-recently-used-by-default-in-file-chooser-dialog are not of much help, but at least they point to one of the upstream commits that introduces this behavior. We can revert those commits and undo the changes for both dialogs.

Alternatively, I think I know a hack to disable this behavior just for the Save dialog: it defaults to the last used folder that's stored in dconf most of the time, and falls back to recently used only if that key is empty. The dialog unsets the key every time you cancel file selection; if we disable unsetting it, we should get it to always default to the latest used folder. In this case we'll also have to add a script that's run on session startup that resets it to home folder, otherwise it will still default to recently used files initially.

[Cody Garver (codygarver)]

Moved to luna+1 since patching GTK is probably not a task we can or should handle right now.

[Israel Dahl (israeldahl)]

It might be worth mentioning, a search bar could help the (new) user actually find that deeply nested folder, and make things much more simple. (where are icons stored??) (where are backgrounds stored?) (where did I put that other document like this one?) (where is my [specific project] art folder) (etc....)

[Cody Garver (codygarver)]

I don't think this is the default behavior in Trusty

[Launchpad Janitor (janitor)]

[Expired for elementary OS because there has been no activity for 60 days.]