Update revision string for rpm packages

Add "0." to pre release packages
Chage to "1" from "1.0" for stable packages

Change-Id: Iea71c05b403ff4b6ac161e11bc70dea78f7774d2
Support timestamp based package names for nightlies

Change-Id: Ibad230f6d82aad146d011a25dfc529f6c6f3b5c4
Merge changes from topic 'pkg'

* changes:
  Support timestamp based package names for nightlies
  Update revision string for rpm packages