1.6.6

• core: Converter will force initialize companion objects to better support init { Converter.use {...} }
• core: Converter now supports inline classes with multiple constructors automatically
• core: Converter now supports any static(String) method automatically, not only parse()
• core: Cache keepAlive function introduced to prolong external cache entries
• server: KeyCipher now uses base64UrlEncode() internally instead of plain base64
• jdbc: db.upsert() now uses excluded special table name for update part instead of setting values twice