1 - property proxy in compount elements.
2 - implement events in all plugins.
3 - app must be able to catch events?
4 - deal with clocking issues
5 - use real chaining where possible
8 * gst_elementfactory_make ("factoryname", NULL) automatically uniquifies the name
10 * parser and scheduler test system
11 * clean up xml code - restore/save creates/save pipeline, gst_object_save/load_props
12 with just the properties