Fix wording in the comment.
Merge branch 'release-0.29.x'
Make sure task is not cancelled twice.

It could happen during the forced termination procedure.
Merge branch 'release-0.29.x'
Improve logging when getting gateway client receives unparsable response.
Log line every time application/json writes en error response. Include the
debug stamp inside to make debugging easier.
Reduce level of log lines produced while loading applications.
Add an descritpion specific to the agents instance which is shown on the
/agents section of the gateway.
When presenting description mind the agents running in different processes.
Request their description via unix socket.
Use feat.common.log in feat-service instead of logging from python standard
library.
make feat-couchpy log to a file.

See
https://trello.com/c/E0Da5wZt/995-it-s-way-too-easy-to-break-all-of-featcredex-by-adding-an-incomplete-document-to-the-database
Bring back the debug message in error responses on the json gateway api.
Merge remote-tracking branch 'github/release-0.29.x'
bump version for first test build
Merge remote-tracking branch 'github/master' into release-0.29.x