BaseX 7.7.2

XQUERY
 - CSV Module and serialization added
 - JSON serializer updated (more to follow)
 - update checks in modify clause fixed
 - parsing of new map syntax fixed (ignoring spaces)
 - tail call handling in built-in higher order functions fixed


 API
 - Russian translation added (thanks to Oleksandr Shpak, Max Shamaev)
 - command-line arguments starting with `<` are interpreted as XQuery


 INDEXING
 - bug fixed in updatable index structure