Warning cleanup

- ignoring const
- declarations after statements
- some C files didnt include own headers (risking them getting out of sync)

Closes #1064

src/fe-gtk/chanview-tabs.c

@@ -62,12 +62,13 @@ cv_tabs_sizerequest (GtkWidget *viewport, GtkRequisition *requisition, chanview
 static void
 cv_tabs_sizealloc (GtkWidget *widget, GtkAllocation *allocation, chanview *cv)
 {
+	GdkWindow *parent_win;
 	GtkAdjustment *adj;
 	GtkWidget *inner;
 	gint viewport_size;
 
 	inner = ((tabview *)cv)->inner;
-	GdkWindow *parent_win = gtk_widget_get_window (gtk_widget_get_parent (inner));
+	parent_win = gtk_widget_get_window (gtk_widget_get_parent (inner));
 
 	if (cv->vertical)
 	{

src/fe-gtk/plugin-tray.c

@@ -186,9 +186,10 @@ fe_tray_set_balloon (const char *title, const char *text)
 
 	if (!notify_is_initted())
 	{
+		GList* server_caps;
 		notify_init(PACKAGE_NAME);
 
-		GList* server_caps = notify_get_server_caps ();
+		server_caps = notify_get_server_caps ();
 		if (g_list_find_custom (server_caps, "body-markup", (GCompareFunc)strcmp))
 		{
 			notify_text_strip_flags |= STRIP_ESCMARKUP;

src/fe-gtk/xtext.c

@@ -3257,7 +3257,7 @@ gtk_xtext_render_stamp (GtkXText * xtext, textentry * ent,
 {
 	textentry tmp_ent;
 	int jo, ji, hs;
-	int xsize, y;
+	int xsize, y, emphasis;
 
 	/* trashing ent here, so make a backup first */
 	memcpy (&tmp_ent, ent, sizeof (tmp_ent));
@@ -3267,7 +3267,7 @@ gtk_xtext_render_stamp (GtkXText * xtext, textentry * ent,
 	xtext->jump_out_offset = 0;
 	xtext->jump_in_offset = 0;
 	xtext->hilight_start = 0xffff;	/* temp disable */
-	int emphasis = 0;
+	emphasis = 0;
 
 	if (xtext->mark_stamp)
 	{