Made _getScriptLocation smarter, and added it to SingleFile.js also. This means that single file builds no longer need to contain OpenLayers.js. r=eleomine (closes #2873)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@10822 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/SingleFile.js

@@ -4,7 +4,12 @@
  * full text of the license. */
 
 var OpenLayers = {
-    singleFile: true
+    singleFile: true,
+    _getScriptLocation: (function() {
+        var s = document.getElementsByTagName('script');
+        var l = s[s.length-1].getAttribute("src").match(/(^|(.*?\/))(OpenLayers\.js)(\?|$)/)[1];
+        return (function() { return l; });
+    })()
 };