Mass Transfer 2.2.1

This is a bug fix release for 2.2 beta

1. Fix transfer failed at receiver side
2. Fix deadlocks

Mass Transfer 2.2 beta

version bump to 2.2(4)

Mass Transfer 2.1

version bump to 2.1(3)

Mass Transfer 2.0

version bump to 2.0(2)

Mass Transfer 1.0

rename