Don't use GSimpleResult in ExoJob (bug #6222).
Don't use GSimpleResult in ExoJob (bug #6222).

New releases of glib force the same source wich is not
working for thunar resulting in segfaults in thunar.
Implement the handling of GSimpleResult in the job (only
errors and the idle, but this one without
g_main_context_push_thread_default and g_main_context_pop_thread_default

rgcjonas/exo-gtk3,rgcjonas/exo-gtk3,rgcjonas/exo-gtk3