mutua11y - validation on number of years

[rachaelbradley]

Because the number of years is preselected, the validation does not currently work on it. I can submit forms without making a selection. This is on both the protege and mentor form.

[alexisreytech]

After testing the form submission, it seems that the form can in fact be submitted without a user selecting their timezone in addition to the number of years of experience.