Pointer cleanup (#242)

- Made greater use of smart pointers, eliminating many instances of manual memory management
- Do not use pointers at all for many non-polymorphic classes
- Assorted other code cleanup

glabels/RollTemplatePath.h

@@ -39,7 +39,7 @@ namespace glabels
 		// Life Cycle
 		/////////////////////////////////
 	public:
-		RollTemplatePath( const model::Template* tmplate );
+		RollTemplatePath( const model::Template& tmplate );
 
 	};