1.5.4

• json: ValueConverter can now be used to transform strings into types
• json: JsonNode.getList() signature fixed
• json: improve error message when trying to parse an empty stream
• json: JsonParser.readArray can now be used to stream json arrays without loading them into memory
• jdbc: close connection (return to pool) even if autoCommit/commit/rollback fails
• server: support for boolean query parameters without values, e.g. ?flag
• server: support for anonymous handler annotations (fixed in Kotlin 1.8)