Two big features packs: * Bonding (Pairing): - starting outgoing pairing requests, - handling incoming pairing requests, - remove current bondings to devices, * Discoverability! - requesting discoverable mode for specified duration, - example with timeout countdown, - checking discoverable mode. And few more features: * get/set for local (discoverable) device name, * getting local adapter address (with some hacks to work on newer Androids), * checking for `isConnected` for discovered or bonded devices, * fixed few broadcast receiver leaks.