Workaround for "xhr.restore" failures.#1951

Merged

cahrens merged 2 commits intomasterfrom christina/fix-xhr

Dec 17, 2013

+322-290

Commits on Dec 16, 2013

Do not restore sinon global objects in afterEach.
cahrens
committed

Commits on Dec 17, 2013

Add documentation.
cahrens
committed