Reverse order on close calls on filestream and cryptstream. Change lazy write of cache to 15 seconds from 30 seconds.

c_micasad/lss/LocalStorage.cs

@@ -286,7 +286,7 @@ namespace sscs.lss
 
 		private void PersistStoreDelayThreadFn()
 		{														
-			Thread.Sleep(30000);	
+			Thread.Sleep(15000);	
 			PersistStore();			
 			persistThread = null;
 		}