Hi Chanaka,
Just spotted the below error when clicking on "Create Version" after selecting the "Tracking" tab at table level.
Fatal error: Call to undefined function PMA_getPlugin() in /home/www/pma/libraries/Tracker.class.php on line 270
I'm surprised that you didn't grep for every function that you have renamed to ensure that there are no more occurrences of the old function names before merging with upstream o_O
Bye, Rouslan