Issue #10: Random delay

What do you think, if Delay would be an array?

If there is 1 number in the array, the delay will be equal to this number.
If there are two numbers in the array, the delay would get random number in between.

Author: gorork

assets/js/tick.js

@@ -2,7 +2,7 @@ $( document ).ready( function()
 {
   $( '.tick' ).ticker(
   {
-    delay       : 1000,
+    delay       : [50, 1000],  // will take random number in between 50 and 1000 ms
     separators  : true
   });
-});
+});