Cdi 1.1 experimental 0.3-SNAPSHOT

Major changes to internals. Now supports @Conversational(auto,propagation) annotation to allow pages to override global configuration.  Added WicketCdiFilter to allow the Cdi functionality to be set before the apps are loaded.  This allows for configuration of global settings in web.xml and for Injection at Application initialization.  One can now put @Inject in the WebApplication class and use the variable in the init function or anywhere else.  Added several tests for ConversationPropagation use cases.  Reintroduced the original Configuration option as deprecated methods to allow easier transition from cdi 1.0 implementation. The Propagation and Auto can be programmatically changed at runtime if the calling code is in a non-transient conversation. Any changes to the global defaults are stored in a ConversationManager which is ConversationScoped.  Adding the test helped to weed out many potential problems.