filebrowser: don't set .primary-toolbar

The toolbar in the file browser widget is not a primary toolbar, so
don't set that class.

Also, set some margins on the toolbar buttons which would otherwise look
too cramped when styled on a non-primary toolbar.

https://bugzilla.gnome.org/show_bug.cgi?id=721813
[l10n] Updated Italian translation.
Add GEDIT_CURRENT_DOCUMENT_LANGUAGE env var
document-loader test: delete the document after the document runs disposal

The document sets metadata on the disposal, if we delete the file
under its feet then we will get a warning about not able to set the
metadata.
gedit-app: use g_option_context_parse_strv()

Instead of our own function to do (almost) the same.

https://bugzilla.gnome.org/show_bug.cgi?id=721947
dbus service: use --gapplication-service

We have to parse this argument for ourselves because we do our own
commandline argument handling.

https://bugzilla.gnome.org/show_bug.cgi?id=721892
Change application ID to org.gnome.gedit

This matches what's already in the service file and between the two
names, the lowercase form is more correct.

https://bugzilla.gnome.org/show_bug.cgi?id=721892
Rename app.new_window to app.new-window

Underscores should not appear in action names.

https://bugzilla.gnome.org/show_bug.cgi?id=721952
preferences: associate the window with the app

This allows the app to stay open if the preferences window is open.

Also, allow the preferences window to be created without a transient
window for it to be associated with.

Make sure we never return the preferences window as the active window.

https://bugzilla.gnome.org/show_bug.cgi?id=721952
Set pyoverrides dir to $(pyexecdir)/gi/overrides

Getting it from gi won't allow installing in a different prefix and
breaks things like distcheck
Don't activate 'Move to new window' on popup menu when not needed

https://bugzilla.gnome.org/show_bug.cgi?id=721961

When there's only one tab, 'Move to new window' menu item must
be deactivated.
When notebook "show-tabs" becomes true, check the show-tabs-mode

When exiting fullscreen, we go back to show tabs, but we should
check show-tabs-mode and see if they should really be shown.
Release 3.11.2
Make Revert sensibility according to one tab not all tabs

https://bugzilla.gnome.org/show_bug.cgi?id=721993

Actualy, 'revert' sensibility is already according to active tab but
also in update_sensitivity_according_to_open_tabs witch is wrong
Use GMenu for the notebook popup
Add the new file to POTFILES.in
Updated Hebrew translation
Bump glib requirement

https://bugzilla.gnome.org/show_bug.cgi?id=722012
Set shortcut for open-terminal-tool to ctrl-alt-T
Updated Lithuanian translation