Throttle by configuration and not by parent in the Matrix Jobs
Adding option to make the Configuration or Parent throttle, Jelly part
Merge pull request #1 from jenkinsci/master

Merging new changes from master in jenkinsci
Merge branch 'master' into jjgarcia/throttle-matrixJobs

Conflicts:
	src/main/java/hudson/plugins/throttleconcurrents/ThrottleJobProperty.java
	src/main/java/hudson/plugins/throttleconcurrents/ThrottleQueueTaskDispatcher.java
Fix tests to adapt them to new property in ThrottleJobProperty, add new conditions to use the new property
Fix correct syntax in jelly file for the new checkbox