Merge branch 'master' into plugins-python

src/plugins/plugins.c

@@ -63,6 +63,7 @@ void
 plugins_init(void)
 {
     plugins = NULL;
+    callbacks_init();
     autocompleters_init();
 
 #ifdef PROF_HAVE_PYTHON
@@ -434,6 +435,7 @@ plugins_shutdown(void)
 
     autocompleters_destroy();
     plugin_themes_close();
+    callbacks_close();
 }
 
 gchar *