Formatter class kOptionsFormatter doesn't always correctly parse data

[Alexander Obuhovich]

I've noticed that if case if user enters "7-8 Servings" into a field, that has kOptionFormatter class set as it's formatter and Array (.... 6 => 6, 7 => 7, 8 => 8 ....) options, then entered value is mistakenly interpreted as "7".

Task: http://tracker.in-portal.org/view.php?id=1204 

Ready for testing.

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[Dmitry A.]

Thanks for the catch and patch Alex.

DA