Update update_col.php

Translation of the button label
Update com_fabrik.php

This should be the final version.
fixed: group by not working
Merge branch 'joomla3' of github.com:Fabrik/fabrik into joomla3
fixed: csv export including filters was not using advanced search filters
fixed: possible notice in radio element if using checkbox filters
Merge pull request #1106 from Sophist-UK/enhance_admin_titles_include_name

Enhance admin titles to include item name - plus misc fixes.
Merge pull request #1104 from jfquestiaux/patch-6

Update update_col.php
Merge pull request #1105 from jfquestiaux/patch-5

Update com_fabrik.php