Merge pull request #3 from flesire/master

Create validation run.
Creation of a validation run
Merge branch 'master' into develop

Conflicts:
	src/main/java/net/nemerosa/ontrack/jenkins/OntrackValidationRunNotifier.java
	src/main/java/net/nemerosa/ontrack/jenkins/support/client/OntrackClient.java
Abstract property object.