v0.19.0

 [BUG FIXES]
 - Add a few forgotten dependencies.
 - Bump dependency for D::Z::P::Twitter.

 [NEW FEATURES]
 - Add 'tweet' flag.

 [STATISTICS]
 - code churn: 3 files changed, 59 insertions(+), 34 deletions(-)
Bugtracker is now GitHub by default
remove smart matches
Build results of 8ea0eb4 (on master)