Minor updates

Not much, but added a few console commands and expanded the help file, did some additional clean-up. Working on letsencrypt in another branch and some of the niceties I introduced there I brought over without breaking anything.

Introducing Mailhog

Run that cron without worrying about customer emails going out! Support still in beta

Bugfixes primarily

v1.5.6

Update README.md

Adds an Updating Mechamism

bin/engine update will update to the latest release (this one, at present). Can also peg to a release with bin/engine update 1.5.5.

Can peg to earlier releases, but obviously will lose the ability to use the update command.

Introducing jwilder/proxy

Reworks config generation and the nginx container to leverage jwilder/proxy. Hoping to steal a good idea or two, and to allow this to play nice with other docker compositions.

Somewhat Stable

v1.4.0

Update README.md