* initmethods returning nil. checks moved outside init.
* leaking module_config_get. Keep better track of those.
* spurious strdup
* leaked hotkeys NSMutableArray when resetting the preferences.
(cherry picked from commit 27d841889c9116d46be643fa482f9ca562d233f3)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>