Fixes #816 adds easing to modal

src/modules/modal.js

@@ -727,7 +727,7 @@ $.fn.modal.settings = {
   context       : 'body',
 
   duration      : 500,
-  easing        : 'easeOutExpo',
+  easing        : 'easeOutQuad',
   offset        : 0,
   transition    : 'scale',
 
@@ -758,5 +758,11 @@ $.fn.modal.settings = {
   }
 };
 
+// Adds easing
+$.extend( $.easing, {
+  easeOutQuad: function (x, t, b, c, d) {
+    return -c *(t/=d)*(t-2) + b;
+  }
+});
 
 })( jQuery, window , document );