The `hub` package is out of date and repeated attempts to contact the
maintainer and take over the package have failed.

https://chocolatey.org/packages/hub
https://github.com/github/hub/issues/1288
https://github.com/twsouthwick/github-hub-chocolatey/issues/1

Have `ci-status` also query Checks API

The results of Status and Checks API are merged together.

Fixes #1787

Fix integration with git 2.18 shell completions

Wrap `git --list-cmds=others` command used by git built-in shell
completions to add a list of hub custom commands.

Fixes #1792

Fix example for fetch.

Add documentation link to Readme

[ci skip]

Do not pass `--cmd' to vi in openTextEditor()

Remove executable bit from bash/zsh completion scripts

Migrate from gopkg.in/yaml.v1 to gopkg.in/yaml.v2

Closes #1781 [ci skip]

Fixes #1758

Instead of a temporary remote being added, now simply fetch
`refs/pull/<PR-NUM>/head` for the origin remote.

Fixes #1773

[ci skip]

Add DESTDIR support for `make install`

When packaging for distributions (particularly RPM), it is common
for the packaging tool to install all of the files into a chroot-
style directory structure as a non-privileged user. This is done
to avoid requiring root privileges for packaging (particularly to
avoid issues where the attempt to package causes changes to be
made to the packaging host.

The standard variable used for this (from autotools) is DESTDIR.
This patch adds DESTDIR before the prefix in install.sh to ensure
that when `make install` is run, it will direct output to the
proper location.
Signed-off-by: NStephen Gallagher <sgallagh@redhat.com>

Ref. 839a5f38

The `--cmd' command passed in openTextEditor() is specific to vim,
adjust the regular expression to avoid passing it to `vi' (previously
it was also passed to `vi' leading to error if the `vi' was not
`vim').

Fixes #1772.

`go fmt ./...` affects the `vendor/` directory before Go 1.9.