Added an event for removing a Favourite
Added an event for removing a Favourite

The UX for this should be sorted out, do we need to prompt people before
they remove a favourite? Do we need to only remove a Favourite when they
click the green tick?

ox-it/moxie-js-client,ox-it/moxie-js-client,ox-it/moxie-js-client,ox-it/moxie-js-client