KVS.DEL() passing tests

Factory creation in ADD is now working

kvs remove functionality working

KVS.remove() test now passes

KVS tested in non persisted mode and works. ...

KVS mostly tested in persisted mode, but more code to write and test

KVS tests for non persistent KVS all pass

Test harness and functionality for KVS defined

Moved KVS to separate module with separate test harness. ...

Will test this in isolation first before integrating with Registry

Managed to persist device configuration to registry.kvs

Beginnings of a persistent version of a class is appearing

Test harness for new Registry and KVS in place

Design of persistent registry store improved after a re-think

Pseudo code for KVS written, ready to be coded up

Design for Registry data store (KVS) done

Thought through next set of demos

monitor_mihome now works with auto join and switch toggling

Factory method added to MiHomeDevice to generate a join_req for testing

Registry_test all test cases now pass for discovery

Set up test case for the final discovery test. ...

Test not run yet, and code is missing, marked with ####HERE####

Join_ack working on discovery mode autojoin

Most test cases for discovery modes implemented and passing

Auto discovery tested and working with accept

Initial outer testing of 4 discovery modes done ok

Framework of discovery methods in place, ready to TDD

Reviewed discovery user requirements, updated todo list

Design for discovery agents done

Updated plan for next steps

Can now construct a device class instance from its product_id

Default incoming message callback added to router, for logging/debug

Router unknown message handling callback registration is cleaner