* cli addition to yml
* first experiments with CLI mode
* rustfmt
* modify owner_single_use to take optional instantiated API
* refactor command functions to take owner api instance
* modify commands to use single owner api instance
* add ability to pass customised message handler to API
* prevent update wallet attempt if wallet hasn't been opened
* fix output when internal updater is running
* add termion, use cli for status updates, remove logging output from CLI
* some attempts to clean up the command prompt and accomodate scanning intervals
* rework listener slightly to allow for cli mode, add close command
* remove termion dependency
* refactor address generation code into libwallet, bool to flag whether to include proof, add sender address in init_send_tx
* rustfmt
* require payment proof addr as part of init_tx
* rustfmt
* store payment proof on sender transaction side
* rustfmt
* change sig to ed25519 sig
* rustfmt
* add message creation and signature
* rustfmt
* add payment proof verification function
* rustfmt
* validate proof on sender side, store proof
* rustfmt
* fix json tests
* fixes and updates to tests
* added API functions for converting and retrieving proof addresses
* rustfmt
* add payment proof to init_send_tx example
* rustfmt
* incorrect comment
* first attempt at adding updater thread
* rustfmt
* rustfmt
* many lifetimes made static to allow api to spawn separate thread
* add first pass at updater thread functionality
* rustfmt
* add mpsc for returning status from update functions
* rustfmt
* add stop state, ensure update is triggered by wallet functions when wallet updater is running
* rustfmt
* add update status function to owner API, V3 owner api functions
* rustfmt
* change update warning
* adding tests for new updater control functions
* documentation updates
* rustfmt
