$JENKINS_HOME if it exists.

See
http://jenkins.361315.n4.nabble.com/LDAPBindSecurityRealm-groovy-td3584243.html

[FIXED JENKINS-9189] fixed the race condition between I/O operation and the return of the Channel.call() execution in more fundamental way.

more gracefully.

Fix non-appearance of the version number

found in hudson.model. Keep this file and add an equivalent in jenkins.model.
Signed-off-by: NNigel Magnay <nigel.magnay@gmail.com>

Fied a couple of places where Task.getAssignedLabel() was invoked directly without checking LabelAssignmentAction

Conflicts:
	core/src/main/java/hudson/model/DependencyGraph.java

according to rfc2307 which says the memberUid is a name (not a uid
strangely enough)

just going by
http://manpages.ubuntu.com/manpages/natty/man5/sssd-ldap.5.html
ldap_schema description and my broken install on ubuntu...

I can't say what ldif I used except it was standard (I didn't write it)
and ldapscripts and phpmyadmin all seem to want the field to be a name.

Possible fix for JENKINS-9806, fix empty customWorkspace -if empry, replace it by null (i.e. no custom workspace)