Replaces KMASendingOperations with KMASender and states.
Adds integration tests for stressful records over multiple threads and Sender ready state switching.
Adds synchronized lock within Sender state methods where state may change.
Updates test for device. Adds build script to allow keychain access while running integration tests on device
Updated code signing for automated device testing.
Updates user agent version to 2.0.1
New framework build for 2.0.1
Merge pull request #2 from kissmetrics/SenderStates

Replaces KMASendingOperations with KMASender and states.