Enhancement: * Add BTSE as our new supporter in the login page (@pavlenex) Fixes: * Fix error 500 on crowdfunding caused by a bug in previous version (@Kukks) * Fix crash on Sqlite caused by previous version (@Kukks), actually silently released in Miscalleneous: * Bump NXBplorer version (should be less intensive on CPU for big wallets) (@NicolasDorier) * Remove misleading error message in case a store can't create invoice because of unavailable rate provider (@NicolasDorier)