request for votes for continuous integration system

[Ted Zlatanov <tzz@lifelogs.com>]

Reposting as suggested by Dmitry Gutov.

I strongly encourage everyone to look around the Hydra instance we
use today, GitLab, BuildBot, and other CI systems they may know.

From the responses, here are the criteria for "a helpful CI" as John put it:

Builds:

* build logs and good notifications
* good platform coverage
* clean builds of all branches+commits and reporting on each one's build
* local replicability of build environment via Docker or VM
* store build artifacts (packages, tarballs, etc.)

UI:

* good UI/UX and multiple requests for a Web GUI too
* support special build requests: specific branch, target, test (via web or email)

Software and maintainer/company:

* Free software
* probable long-term support; ie they have a solid business plan
* personal logins to comment on builds or specific code

Nice to have:

* pull request awareness (not necessarily PRs in the CI system itself)
* code review capability

In order to keep the evaluation objective, I'll keep out of the voting.
If you just want to vote, please send your votes to me directly by
e-mail. But please feel free to vote and comment here; just make sure
to make it clear that you're voting so I can keep track.

You can vote for multiple CI systems if you think that's a good thing.

Thanks
Ted