Release 1.0.2

Update versions for 2.0.0b1 release

Release 1.0.1

Release 2.0.0a

Update version constants for 1.0.0 release

Update version constants for X1.0.0b3 release

Update version constants for X1.0.0b2 release

Update version constants for 1.0.0b1 release

Merge branch 'master' of github.com:kubernetes-incubator/client-pytho…

…n into release-1.0