Updated to latest Qunit 1.10.0 & added test for issue 95

test makes sure that correct exception is thrown and mappingNesting is reset by making sure on subsequent calls DO's are evaluated at least once.  if mappingNesting was reset on an exception then the DO wouldn't be evaluated.

I had to update to qunit 1.10.0 and tweak a few tests to add expectations to test for the throws.