Adds return value to client_cmdmanager methods.
Improves connection_manager tests.
Improves SkipObserver.
Changes FileFakeEvent to simulate events with no dest_path.
Adds FakeEventQueue to test SkipObserver.
Explicit in FIleFakeEvent creation its arguments
Creates SkipObserver tests.
Fix space in FakeEventQueue
Changes to static method create_file in FileFakeEvent.
Merge pull request #89 from k4rl85/adds_tests_client_daemon

Adds tests client daemon
Deny modification to user data after authentication.