[FIXED JENKINS-18942] Add dsl method to add fingerprint publisher.
Merge branch 'master' into fingerprint

Conflicts:
	job-dsl-core/src/main/groovy/javaposse/jobdsl/dsl/helpers/TopLevelHelper.groovy
	job-dsl-core/src/test/groovy/javaposse/jobdsl/dsl/helpers/TopLevelHelperSpec.groovy
Merge pull request #74 from wolfs/fingerprint

[FIXED JENKINS-18942] Add dsl method to add fingerprint publisher.