Upgrade JGit to 5.1.5.201812261915-r
Upgrade JGit to 5.1.5.201812261915-r

This release fixes an issue where AdvertiseRefsHook was not called for
git-upload-pack in protocol v0 bidirectional transports, meaning that
wants aren't validated and a user can fetch anything that is pointed
to by any ref (using fetch-by-sha1), as long as they can guess the
object name.

Bug: Issue 10262
Change-Id: I4805d128fa5cbe0ea202435c899ae963faf7d7b3

qtproject/qtqa-gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,WANdisco/gerrit,WANdisco/gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,WANdisco/gerrit,WANdisco/gerrit,qtproject/qtqa-gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit