[packages/heimdal] Non-fast-forward update to branch dev-7.1

[glen]

The branch 'dev-7.1' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch.

Commits removed from the branch:

  66c1bd8... up to 7.1.0

Commits added to the branch:

  9f358b8... up to 7.1.0