Fix error with parsing strings with object pointers;
Fixes the following case: 
	echo ar('loader')->makeURL($cover->path); // this works
	echo 'a' . ar('loader')->makeURL($cover->path); // this does not



git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6272 7882d7ee-46e0-0310-a255-a28a61b628e4