Bug 741959 - text input broken on OS X 10.5 from 2.24.19 onwards

Alias insertText:replacementRange: to insertText: for SDK > 10.6,
and implement insertText: for SDK < 10.6.

gdk/quartz/GdkQuartzView.c

@@ -186,7 +186,15 @@
     [self performSelector: aSelector];
 }
 
+/* This gets called on OS X 10.6 and upwards from interpretKeyEvents */
 -(void)insertText: (id)aString replacementRange: (NSRange)replacementRange
+{
+  [self insertText:aString];
+}
+
+/* This gets called on OS X 10.5 from interpretKeyEvents, although 10.5
+ * is supposed to support NSTextInputClient  */
+-(void)insertText: (id)aString
 {
   GDK_NOTE (EVENTS, g_print ("insertText\n"));
   const char *str;