Refactored checks of source links of TaskScannerAction and additinally used in the other stylecheckers. Some are commented out because they fail (bug?).
Merge remote-tracking branch 'upstream/master' into check-of-source-links

Conflicts:
	src/test/java/plugins/FindbugsPluginTest.java
Merge branch 'check-of-source-links' of https://github.com/jenkins-acceptance-test-group/acceptance-test-harness

Conflicts:
	src/main/java/org/jenkinsci/test/acceptance/plugins/findbugs/FindbugsAction.java