[serializer-fast] Minor cleanups and upgrade
[serializer-fast2] Add a Fast 2 serializer
[serializer-fast] [serializer-fast2] minor adjustements following the merge of #361
fix for issue #283

(cherry picked from commit b8cde2f321d2929be336357922042e31b9f5348b)
Merge pull request #363 from openwide-java/fast-master

Merge of #361 to master