Supplying transformation functions

This week I continued to work with synchronization protocol. I still needed to handle operations such as delete and update. Because of the versatility of the client and server class I had to provide only appropriate transformation functions. By adding these operations I could add ability to modify(move, change line width, change colours) and delete elements. The protocol is almost ready for now, but I still have to consider few more situations(such as the same element deleted on both sides).