Fixed issue mentioned in issue #319 where the Security Filter instance created by HttpRexsterServer
never has configure called.
With the change to HttpRexsterServer.java to call configure, the configuration can now be kept in an
instance variable rather than static variable.  See issue #319 for details, but this is the fix
to remove what was the workaround in DefaultSecurityFilter.java for that issue.
Completed changes so that DefaultSecurityFilter instances have configure called as well for issue #319.
Get security working for RexsterConsole and RexPro in general.