Log Message:
Update to 1.12.0. From the changelog:

- If you renamed the executable or use a symlink to use a
  different name, `mob` will detect the new name and use that in
  its console output.
- Improves error handling when using `mob start -i`. When the working
  directory is a subdirectory that would be removed due to `git stash`
  the mob tool will tell the user about this and aborts with an error.

pkgsrc changes:

- Install an `ensemble` symlink.