0.87

got 0.87

- add gitwrapper(1)
- tog: resume blame and diff search from the first line
- fix crash in got log due to NULL-deref in got_object_blob_close
- add support for protecting references against 'got send -f' to gotd
- fix spurious empty packfile error from gotd when rewinding a branch
- tog: implement automated test harness
- update the base commit ID of unmodified files if the blob ID matches
- fix rebase/histedit -a leaving some files on the temporary branch
- make 'got revert' and 'got rm' work on non-existent directories
- got: flush stdout before printing the error in main()
- when aborting rebase/histedit/merge, unlink files added by merged changes
- fix 'got commit' using a bad parent commit ID when worktree is out-of-date
- allow no-op merge commits to be created
- fix sending merge commits
- show how to fetch a pull request in got.1 pull request example section