Tests, tests, tests
Merge branch 'master' into businesscounter
Merge branch 'master' into businesscounter

Conflicts:
	src/main/java/de/codecentric/batch/configuration/MetricsConfiguration.java
	src/main/java/de/codecentric/batch/metrics/MetricsListener.java
	src/test/java/de/codecentric/batch/test/BusinessMetricsIntegrationTest.java
Merge pull request #12 from codecentric/businesscounter

Merge business metrics