v.1.4.5

Implemented: [critical] background broadcasting new blocks and operations
Fixed: [critical] silently lost spending transactions
Fixed: blockchain sync logic hardened
Fixed: UI message box, networking
Fixed: netdata instantiation
Fixed: wallet crash on close
Fixed: networking, warnings, atomic operations
Fixed: server graceful shutdown
Changed: new blockchain update request awaiting logic
UI Implemented:: double click on account to add it to the list
UI Implemented: ability to decode any user-provided payload
UI Implemented: shortcut to send all available balance on the account
UI Implemented: last N used destinations
UI Fixed: invalid payload decoding order
Added: print daemon version on start
Added: RPC methods examples to README
Added: RPC initial description to README