Merge #7892: Add full UTF-8 support to RPC ...8 support in release notes (Wladimir J. van der Laan) ...utf-8 for labels in wallet (Wladimir J. van der Laan) ...setting to AuthServiceProxy (Wladimir J. van der Laan) ...changes from 2740c4f..f32df99 (Wladimir J. van der Laan)