Update utf8.php

3rd party code removal
Reverting changes to 1.5.6.1 branch and moved to new 1.5.6.2
Update utf8.php
Update utf8.php
Reverted changes again made to the 1.5.6.1 branch and moved to 1.5.6.2.
Merge pull request #7 from ocshop/v1.5.6.1

V1.5.6.1