Updates to source and tests for Ajax calls#1

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jakerella wants to merge 3 commits intoappendto:lab-3-qunitfrom

jakerella:lab-3-qunit

Commits on Mar 1, 2015

Upgrade to QUnit v1.17.1
jakerella
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Added 'find' method to model and made viewmodel use that for search; switched searching to do ajax call to json file
jakerella
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Fixed tests for new source code with ajax calls; added mockjax to handle ajax calls
jakerella
committed