Pypck

Bugfixes
- Correct handling of variable responses without a type.
- Variable polling when requesting the same variable status multiple times.

Improvements
- Support for connection handshake for PCHK versions <2.2.
- Add callback function to handle various LCN host exceptions.

Improvements
- Add K as Kelvin unit (according to SI units).

Improvements
- Function for registering a callback for new arrived inputs returns a callback to unregister the callback itself.

Improvements
- Module name/comments requests.
- Handling of host exceptions (e.g, license error, lcn-connection error, ...).
- Add module scanning command.

Bugfixes
- Setting operation mode right after authorization.
- Occassionally missing spaces when retrieving names/comments from a module.

Other
- Major code refactoring.