SmartCash/smartcash 6 merged

• Year update Jan 6
• Additional Info Sync Fix Jan 5
• Various InstantPay Fixes Jan 4
• TXLock Fix Jan 4
• Fix includes + Relay tx fee Jan 1
• Included ui_interface for additional sync gui Jan 1

proteanx/smartcash 3 merged

• merge Jan 6
• 1.1 Jan 5
• 1.1 Jan 2