Protocol binding toggles

[eswdd]

Add binding toggles by property so that all bindings for a particular protocol can be enabled/disabled at start time.

[eswdd]

Code fix done, will need adding to documentation - when we get there...

[eswdd]

Realised I implemented toggles for whole protocols, rather than the per service protocol binding that was originally required. Have changed the title of this issue and raised issue #40.