Better filters

[bsiegert]

From gdt@ via mail:

Allow filtering by OS, OS-Version tuple, arch, os-arch and os-version-arch.

[bsiegert]

As for filtering, you can use the search field above the table and enter (e.g.) NetBSD. It's not ideal, but better than nothing.

The main problem is that the way people tag their builds is not super rigorous, at least for the branch names. For instance, I see "HEAD", "netbsd-trunk-x86_64" and a few others that all mean the same thing. I guess this could be solved with a manual translation table, or something.