Bug 570914 - Test for verifying that marker creation with attributes
triggers only one resource change event

The new API has been defined so markers can be created without triggered
resource change events for each attribute set. This test validates that
markers created with the new api only trigger one resource change event.

Change-Id: Idaaea52997a76a12122c287b13dbec9b936ce5e2
Signed-off-by: Lars Vogel <Lars.Vogel@vogella.com>