Merge pull request #61 from dnk/master

gtk3: fix media keys
Sync translations with transifex
Sync translations with transifex
Bump version to 1.8.0
Sync translations with transifex
Bump version to 1.9.0
Sync translations with transifex
Update vendor_url in policy file
Add support for GTK3 Gtk/DecorationLayout setting

Closes https://github.com/mate-desktop/mate-settings-daemon/issues/63
See https://developer.gnome.org/gtk3/stable/GtkSettings.html#GtkSettings--gtk-decoration-layout
Remove deprecated g_thread_init and g_type_init functions
Replace deprecated g_thread_create with g_thread_new
gdk_x11_window_lookup_for_display and gdk_window_get_screen are in gdk2
gdk_window_*_filter are in gdk2
Bump glib required version
Drop support for glib < 2.36
Merge remote-tracking branch 'upstream/master'

Conflicts:
	mate-settings-daemon/main.c
	plugins/datetime/msd-datetime-mechanism-main.c