fix shutdown so ctypes libs are close cleanly + cleaning

src/modules/FiretrayHandler.jsm

@@ -110,6 +110,7 @@ firetray.Handler = {
   },
 
   shutdown: function() {
+    F.LOG("Disabling Handler");
     firetray.PrefListener.unregister();
 
     if (this.inMailApp)

src/modules/FiretrayInstantMessaging.jsm

@@ -33,7 +33,7 @@ firetray.InstantMessaging = {
     if (!this.initialized) return;
     F.LOG("Disabling InstantMessaging");
 
-    Services.obs.removeAllObservers(firetray.InstantMessaging);
+    firetray.Utils.removeAllObservers(firetray.InstantMessaging);
 
     this.initialized = false;
   },

src/modules/FiretrayMessaging.jsm

@@ -54,11 +54,12 @@ firetray.Messaging = {
     F.LOG("Disabling Messaging");
 
     firetray.InstantMessaging.shutdown();
+    F.LOG("HI THERE");
 
     MailServices.mailSession.RemoveFolderListener(this.mailSessionListener);
     firetray.Handler.setIconImageDefault();
 
-    Services.obs.removeAllObservers(firetray.Messaging);
+    firetray.Utils.removeAllObservers(firetray.Messaging);
 
     this.initialized = false;
   },

src/modules/linux/FiretrayGtkIcons.jsm

@@ -20,6 +20,8 @@ firetray.GtkIcons = {
 
   init: function() {
     try {
+      if (this.initialized) return true;
+
       this.loadDefaultTheme();
       this.initialized = true;
       return true;

src/modules/linux/FiretrayPopupMenu.jsm

@@ -60,6 +60,7 @@ firetray.PopupMenu = {
   },
 
   shutdown: function() {
+    F.LOG("Disabling PopupMenu");
     firetray.Utils.tryCloseLibs([gobject, gtk]);
     this.initialized = false;
   },

src/modules/linux/FiretrayStatusIcon.jsm

@@ -39,14 +39,12 @@ firetray.StatusIcon = {
     this.FILENAME_BLANK = firetray.Utils.chromeToPath(
       "chrome://firetray/skin/blank-icon.png");
 
-    this.defineIconNames();
-
     Cu.import("resource://firetray/linux/FiretrayGtkIcons.jsm");
     firetray.GtkIcons.init();
-
+    this.defineIconNames();
     this.loadThemedIcons();
-    this.trayIcon = gtk.gtk_status_icon_new();
 
+    this.trayIcon = gtk.gtk_status_icon_new();
     firetray.Handler.setIconImageDefault();
     firetray.Handler.setIconTooltipDefault();
 
@@ -61,6 +59,7 @@ firetray.StatusIcon = {
   },
 
   shutdown: function() {
+    F.LOG("Disabling StatusIcon");
     firetray.PopupMenu.shutdown();
     firetray.GtkIcons.shutdown();
     firetray.Utils.tryCloseLibs([cairo, gobject, gdk, gio, gtk, pango, pangocairo]);