drone/drone — pull request #737 by epipho (2014-11-30 22:24:39+00:00)
Title: All repositories now have a monotonically increasing build number.

This is for #677

All repos now store a monotonically increasing build number.
The build number assigned to a commit is stored so it is stable across rebuilds.
Changed CI_BUILD_NUMBER to expose the repo's build number
Added DRONE_BUILD_NUMBER for parity