Added code coverage configuration and added mocking to GalaxyWorkflowEngineTest
There is a conflict between code coverage tools like JaCoCo and mocking tools like PowerMock, since PowerMock changes class files during testing. This interferes with the coverage measurements that JaCoCo is doing, also by changing the class files. See https://github.com/jacoco/jacoco/issues/51 and http://sourceforge.net/p/eclemma/discussion/614869/thread/3d875388 for more information. I will look into ways to increase testability without relying on PowerMock.
- pom.xml: added Surefire plugin explicitly, modified JaCoCo configuration.
- Both files: changed line separators to line feed (\n).