Solve an issue where 2 threads would get locked at startup

These two threads (one loading XText, the other trying to compile the
metamodel) would get locked at startup, both trying to compile and
instantiate the gama platform agent.

msi.gama.lang.gaml/src/msi/gama/lang/gaml/resource/GamlResourceServices.java

@@ -234,7 +234,9 @@ public static String getProjectPathOf(final Resource r) {
 		}
 	}
 
-	public synchronized static GamlResource getTemporaryResource(final IDescription existing) {
+	// AD The removal of synchronized solves an issue where threads at startup would end up waiting for
+	// GamlResourceServices to become free
+	public/* synchronized */ static GamlResource getTemporaryResource(final IDescription existing) {
 		ResourceSet rs = null;
 		GamlResource r = null;
 		if (existing != null) {