Upcoming 0.12.4 release testing needed

[Jiří Techet <techet gmail com>]

Hi everyone,

I'm planning to release libchamplain 0.12.4 in a week or so. Even
though the API hasn't been changed, there have been many
under-the-hood changes and it's possible that things got broken.

It would be good if everyone using libchampalin tries to build against
what's in git master and report any problems. Basically everything
should work as before (just the dependency on clutter has been bumped
to 1.12) so if there's some compilation problem or something behaving
differently, it's most probably libchampalin's problem and should be
fixed there.

Cheers,

Jiri