Update controllers/admin/AdminTranslationsController.php

For front tpl/js parse. You can translate those both technical declaration ' or " :

var test = "{l s='Test with this quote' mod='lambda'}";
var test = '{l s="Test with this doublequote" mod="lambda"}';

this way can be paste for all translation type :
front, back, errors, modules, pdf
Merge pull request #248 from DevNet/patch-3

Update controllers/admin/AdminTranslationsController.php