Update Tax-meta-class.php

Hi, first off all thanks for the plugin. I am using it and had the following error:

Warning: Illegal offset type in /home/agbmcomb/public_html/beta/plenatv/wp-content/themes/plenatv/Tax-meta-class/Tax-meta-class.php on line 537

I didn`t read all the code, but had success with my changes.

I don't know if could have any problem because of my changes in other part of the code, but it works fine. The only thing that is different is that the text value appears in the repeater block field, it helps me a lot, because I don't have to click to know what value is there, I just select the value that I want change and do it.

Hope Help.
Thanks again.