- fixed events package. looks nice!
removed crappiest things.
fixed compile-time errors in RPC
fixed ALL compile-time errors
fixed compile-time errors in the tests.
fixed error in channel_impl.
- fixed few tests
- added _after_ events, which are executing in finally blocks
- added eventListeners on devices
- fixed core tests.
- minor fixes in zmq_message and header- classes.
- added few new events, finalized (finaly :)) hierarchy of events.
- created SyncRecv-/SencSend-   event_listeners.
- fixed bugs in channel_wrapper.
- made some classes FINAL.