Add zsh autocompletion definition

[Lunaetic]

This PR adds an autocompletion definition script for zsh that uses sed and awk to parse the output of usage.help.

It also adds sync and vnc to the usage.help file, and corrects a typo.

[sprankhub]

Thanks for a start on this! This is a very good start. In the end, it would be nice to have more advanced autocompletion for options or commands, which are "nested" like warden env up (currently, it would not complete the up if I understand correctly).

[stale[bot]]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[sprankhub]

Yes, this is still relevant.

[sprankhub]

@davidalger, mind merging? There is much more work to do, but it should not stop us from merging this IMHO.

[stale[bot]]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[sprankhub]

@davidalger, mind having a look at this?

[stale[bot]]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[sprankhub]

@davidalger, should we just merge it and improve it whenever someone has time?

[sprankhub]

I still think this should be merged :(

[celorodovalho]

I think this is still relevant and should be merged.

[navarr]

Closing this as I don't foresee additional work occurring in this PR. Myles, my man, feel free to reopen if you get a hankering to try a second stab at this.