Turn off help-block

[Jon Kristian]

Hi, would it be possible to get a configuration file published to allow turning off help-block, or turn off help-block in each openGroup, for instance:

Form::openGroup('address', 'Address', array('class' => 'some-class', 'help-block' => 'off'))

Visually on some fields i'd like to display the red border only.

[Philip Manavopoulos]

Thanks to @vsposato's work in #7, you can now pass errorBlock (true/false) to options.