Release 0.0.97

See #1280, release log:

• 70f5886 by @rultor: 0.0.98-SNAPSHOT
• 012d1ec by @amihaiemil: Merge pull request #1285 from ...
• 82930ca by @amihaiemil: #1281 updated messages
• 52f2e11 by @amihaiemil: Merge pull request #1284 from ...
• f5303a9 by @criske: #1271 Replaced SendReply with ...
• 1cd81b4 by @criske: #1271 Reply with estimation ch...
• 0de74ab by @amihaiemil: Merge pull request #1283 from ...
• 9dd5d1d by @criske: #1269 Send a comment after upd...
• 7251fe5 by @amihaiemil: Merge pull request #1282 from ...
• 701683a by @criske: #1268 Check for closed issue b...

Released by Rultor 1.70.6, see build log