* Add an head ref for the sake of using self repo for testing
* Add test for CommitCount
* Add testing with git-1.7.2
* Add test for GetLatestCommitTime
The test checks that latest commit time is before now
and more recent than the commit this PR is based at
Test no error is raised by time parsing and GetLatestCommitTime
Print actual time when tests fail
* Accept git 1.7.2 as the minimum version
Debian old old (very old) distribution (6.0 aka Squeeze)
ships version 1.7.10.4.
The version requirement was raised in #46 supposedly for the
need of "symbolic-ref" command, but that command is supported
by the 1.7.2 version too, and possibly even older versions.
* Reduce output from drone, add comments
Reduce steps, concatenating them in logical steps
* Interrupt step upon first failure
* Add Dockerfile for use with ci
* Use ad-hoc docker image for testing git-1.7.2
* Avoid running build/vet/clean twice
* Set HEAD ref also in testing-1-7 step
Sandro Santilli