list_devices() was updated to take an integer rather than a bool for the wait_to_appear argument. This updates any tests that explicily passed True/False as the argument to list_devices.
1) Switch to new Agent API 2) Refactored to start catching the exceptions and properly dispose an instance of iwd
This patch combines the work done by Rahul to test the interoperability of permutations of MFP options in IWD/AP into a single autotest.
