v0.5.1

"Jaculus jerboa"

Features

• Upgrade Beam to 2.4.0
• Upgrade to Scala 2.12.5
• Bump kryo to 4.0.2 #1080

Bug fixes

• Throw EOFException so Flink can detect when to spill to disk #1070
• Update ParquetAvroSink with beam 2.3.0 convention #948
• Add Kryo serializers for Path and ByteString #1016 #1017