Issue #3 Sequence contains no elements fix

Covers scenario where the user is at, for example,
/TestPlanPerIteration/Index/4 and changes the project. The new selected
project has no IterationID = 4, so the user is redirected to
/TestPlanPerIteration.
Issue # 3 reported by @mbeckerle is fixed.
Issue #3 Sequence contains no elements fix