Replaced array with text

Replaced array with text for ‘guides’
Version 7.x-2.1-dev

Changed *.info to account for minor version upgrade to account for
change in schema change.
Schema change

Changed schema, guides field is now text and not serialized.
Added update function to apply change.
EventStationController changed

Changed EventStationController:: buildContent to account for change of
field from array to textfield.