- simplifying Jelly view and submission handling

refactor the save method so that it is available to all and null safe. also added a readResolve to handle when null properties are deserialized

Adding a TransientComputerActionFactory. Note that the transient actions are never updated, so to make actions appear to be added dynammically you need to always add them and control their display, rather than conditionally add them.  This is the same behaviour as for TransientViewActionFactory but not quite the same behaviour as TransientProjectActionFactory

Conflicts:

	changelog.html

I'm seeing an occasional SocketTimeoutException in waiting for a response from the server. I suspect there's some concurrency issue in the ThreadPool implementation, as the problem disappears when I attach a debugger (and let it run for 8 hours.) Swapping to JDK ExecutorService to see if that makes a difference

occasional test failures. See JETTY-1149.

allowed classloader to be specified, to improve the flexibility of the types that can be used for getRemoteProperty()