added the ability to send an object of parameters to a lazy load, not just param_name and param_value
added a test to make sure that fetchLazy throws an error if the fetch_params is not an object, also restored the tests correctly
simplified the tests for getting the fetchSpec
fix bug where lazy loaded views are loaded multiple times
make sure to call preRender before render is called in _fetchLazyCallback
Merge pull request #404 from saponifi3d/lazy-load-multiple-parameters

added the ability to send an object of parameters to a lazy load