XD-942 Changed repo URLs to spring.io
Add job modules to gradle projects list
XD-935 TupleCodec uses kryo serialization

XD-935 Fixed test issues. Upgraded to kryo 2.22 and made tupleToStringConverter transient
Fix NPE in StreamTestSupport

Only call stop in cleanup if node instance is not null.
Fixed dead assignment in ModuleTypeConversionPlugin