Merge pull request #4560 from dcarrith/issue_4559

Issue #4559: Fixing the blink forward/back effect that sometimes happens... Thanks @dcarrith!

css/structure/jquery.mobile.transition.css

@@ -10,15 +10,18 @@
 }
 
 .in {
+    -webkit-animation-fill-mode: both;
 	-webkit-animation-timing-function: ease-out;
 	-webkit-animation-duration: 350ms;
+    -moz-animation-fill-mode: both;
 	-moz-animation-timing-function: ease-out;
 	-moz-animation-duration: 350ms;
 }
-
 .out {
+    -webkit-animation-fill-mode: both;
 	-webkit-animation-timing-function: ease-in;
 	-webkit-animation-duration: 225ms;
+    -moz-animation-fill-mode: both;
 	-moz-animation-timing-function: ease-in;
 	-moz-animation-duration: 225ms;
 }