First version of the new generation K-Relay

Switch to the new generation of K-Relay

Thanks to Jazz (Jazz23) and 001 (001x) for their contributions and for maintaining K-Relay.

Renamed "Lib K Relay" to "Lib_K_Relay" for consistency.

Last version of the old generation K-Relay

Merge pull request #10 from natiiix/server_change_test

Merge server_change_test into master