[JENKINS-8446] it's better to let those directories setting be a part of JENKINS_HOME rather than being independent configuration properties, since they aren't orthogonal.

previously read "Shows the Hudson version". Changed this to read
"Outputs the current version".

projects.

I'd like to believe that the original reason was because earlier
versions of XStream that we used early on didn't support the methods
that take InputStream as a parameter.

updated ManagedWindowsServiceConnector so that it continue to do the expected thing (that is, config without the machine name.)

adding something to DescriptorExtensionList should cause addition to ExtensionList of Descriptors as well.

and an implementation around SSH keys.

changelog will be updated when the server-side authentication module
is added.

"java.lang.NoSuchFieldError: clouds" in libvirt plugin and other cloud plugins, as the type of the field has changed.
The same problem can potentially occur with MasterComputer, so I fixed that as well.

Added a new WipeOut permission (enabled through the hudson.security.WipeOutPermission system property) to control the "Wipe Out Workspace" action