A3t::findAttributeModifier

- Added support for attmods including :/= alternatives, which is an improvement.

src/parser/A3t.h

@@ -50,6 +50,7 @@ private:
   void findSubstitution ();
   void findTag ();
   void findAttribute ();
+  void findAttributeModifier ();
   void validate ();
 
 private:
@@ -59,4 +60,3 @@ private:
 
 #endif
 
-