Clone repository to local (inc. submodules). ([xclone])

Similar: [commit-push], [amend-push], [clone-init-submodules].

$ egit clone-init-submodules

Clone repo with "wiki" submodule
$ egit clone-init-submodules nodef/extra-git
$ cd extra-git

[xclone]: https://github.com/nodef/extra-git/wiki/xclone
[commit-push]: https://github.com/nodef/extra-git/wiki/commit-push
[amend-push]: https://github.com/nodef/extra-git/wiki/amend-push
[clone-init-submodules]: https://github.com/nodef/extra-git/wiki/clone-init-submodules