fixed a ridiculous number of gcc warnings, nearly all of which were complaints about unused parameters - the remaining 199 warnings I get are from code that isn't ours (box2d is responsible for all but 8 of them)

src/common/runtime.h

@@ -252,7 +252,7 @@ namespace love
 	**/
 	int luax_getregistry(lua_State * L, Registry r);
 
-	Type luax_type(lua_State * L, int idx);
+	Type luax_type(lua_State * L, int idx);
 
 	/**
 	* Converts the value at idx to the specified type without checking that
@@ -264,7 +264,7 @@ namespace love
 	* @param type The type bit.
 	**/
 	template <typename T>
-	T * luax_totype(lua_State * L, int idx, const char * name, love::bits type)
+	T * luax_totype(lua_State * L, int idx, const char *, love::bits)
 	{
 		return (T*)(((Proxy *)lua_touserdata(L, idx))->data);
 	}