- Require all EPlugin and EPluginHook subtypes be registered before
loading plugins. This drastically simplifies the EPlugin/EPluginHook
negotiation.
- Turn most EPluginHook subtypes into GTypeModules and register their
types from an e_module_load() function (does not include shell hooks).
- Convert EPluginLib and the Mono and Python bindings to GTypeModules
and register their types from an e_module_load() function, and kill
EPluginTypeHook.
