Initial patches committed to bug_5922_branch_1. Most changes are in
FaultHelper.java. Code is not complete and some pieces have to be cleaned up. 
Although current fault helper tests work, I suspect chained faults need more
work.

Updated codebase to encode FaultCause>BaseFault with the specific type declared
in the xsi:type for the BaseFault element.  Passes all tests both embedded and
external container.

updated schemas, FaultHelper and serializers

I've been getting NPEs in some calls to FaultHelper.printStackTrace().  One way
to reproduce this is to modify wsrf-query, replacing:

             if (client.isDebugMode()) {
                 FaultHelper.printStackTrace(e);

with:

             if (client.isDebugMode()) {
                if (e instanceof BaseFaultType) {
                    FaultHelper helper = new FaultHelper((BaseFaultType)e);
                    helper.printStackTrace(System.out);

and then run a command that will generate a server-side fault, such as:

  wsrf-query -debug -s <server_url> "//["

When I do this, I get this stack trace:

Exception in thread "main" Error during startup processing. Caused by
java.lang.NullPointerException
    at org.globus.wsrf.utils.FaultHelper.getStackTrace(FaultHelper.java:473)
    at org.globus.wsrf.utils.FaultHelper.getStackTrace(FaultHelper.java:477)
    at org.globus.wsrf.utils.FaultHelper.printStackTrace(FaultHelper.java:372)
    at org.globus.wsrf.client.Query.main(Query.java:104)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.globus.bootstrap.BootstrapBase.launch(BootstrapBase.java:114)
    at org.globus.bootstrap.Bootstrap.main(Bootstrap.java:41)

However, running without the -debug (and thus skipping the stack trace code)
shows that server sent a reasonable-looking fault:

Error: org.oasis.wsrf.properties.QueryEvaluationErrorFaultType caused by [0:
org.oasis.wsrf.faults.BaseFaultType: [Caused by: A location step was expected
following the '/' or '//' token.]]

Fixed and committed