pod file changes after adding OCMock
new model tests class

has mocked APIClient and mockObserver
added setSharedClient method to APIClient
[#68367216] Added magical record to the base model test
feed item tests

last one failing, getting weird core data problems
Move to a unit tests scheme, clean up pods
Merge pull request #53 from cloudspace/68358648_feed_item_unit_tests

68358648 feed item unit tests