Sync from wiki/ in tiko-lang a0ca604a4: chrono text members return ustring; fs text encodings and record files tiko-lang wiki commits since a60cd1ace: 064bf5ae8 docs: chrono text members return ustring; the U names are gone a91df1008 docs: text encodings and records -- wiki, tiko by Example and book Ch 24 (fs RFC-0002 P6) 3f13ae5a3 std/codec, std/fs: rename Binary_( ) to BinaryMode( ) daed1aac8 std/fs: TextReader, TextWriter and ReadLines in a text encoding, and detection (fs RFC-0002 P3) 0a2de34f8 std/fs: ReadAllText, ReadAllLines, WriteAllText, AppendAllText and WriteAtomic in a text encoding (fs RFC-0002 P2) eb5b72bf0 std/codec: TextEncoding and the text transcoder, re-exported by std/fs (fs RFC-0002 P1) 3a194bfe8 wiki: split Filesystem into Filesystem (fs + paths) and File Streams