- tCom
* all messages are now typed

- computer/APIs/Component
* fixed a bug

- computer/APIs/Socket
* applied changes in tCom
* recvAcked() now returns received data

- computer/APIs/Window
* fixed a bug
* added event handler for rednet messages

- computer/bin/ctrt
* trtList() is now less error-prone
* trtCtrl will no longer lock while waiting for
command-completion-message

- turtle/APIs/trt
* added function to send status updates
* status update is broadcasted on every dig operation

- turtle/startup
* applied changes in tCom