Upcoming 2.1.13 release

Hi all,

It's been more than 7 years since we released 2.1.12.

Along the years, a few issues have been resolved (see [1]), deserving a 
release.

I'll prepare a release in the next days, even if the Apache release 
process should have change a lot since then :)

If some of you have waiting patches, or some stuff to commit or talk 
about before this release, please do!

Best regards,
Cédric

[1] 
https://issues.apache.org/jira/secure/ReleaseNote.jspa?version=12324118&projectId=12310170