schema changes. Closes:#726955. Closes:#720170. Closes:#720176.
* Fix the "shellquote" command to work properly. The bugs in it ought
not to have caused any real trouble in previous versions of dgit.
+ * Retrospectively mention in changelog entry for 0.16~experimental2
+ that it Closes:#727125.
--
* WIP remote functionality. Untested, do not use.
* Some code motion and cleanups.
* push actually takes an optional suite, like it says in the synopsis.
+ Closes:#727125.
* Command execution reports from --dry-run go to stderr.
* Support --gpg=... to provide a replacement command for gpg.
* Support --ssh=... and --ssh:... to affect how we run ssh.