IDEA-116087 Warning when using new wrapper.gradleVersion construction
fixed PY-10998 Wrong highlight in rst (restructured texts) for headlines
[log] IDEA-117365 Expect "empty" git tag; protect against errors

* Handle the case described in IDEA-117365: a tag reference without
  tag name. Just skip those tags, at least until their origin is
  investigated.
* Protect against more possible exceptions from the tag parsing:
  don't fail to provide data to the log, just skip tags and report
  the error.
Merge remote-tracking branch 'origin/master'