Falsy statement in installation guide.

It says:
"Almost done! For next steps on configuration:
  https://github.com/progrium/dokku#configuring"
after bootstrapping..
Merge pull request #290 from Jeewes/patch-1

Deprecated statement in installation guide.
doc stub
more obvious/standard/short
ci stuff
gopath
boot is now an image setup script. receiver updated to work with gitreceive-next
remove build dir if exists. use absolute paths
changes to the environment
disabling php
new travis config
kill it
be sure to push to master
wait longer for host to be running gitreceive
Add an 'add-ons' plugin, which provides heroku style add-ons.

Add-ons provide access to services (e.g. database) by applications.
This is still WIP.
Add an ADDONS.md file to describe how to use the plugin.
Fix indentation, refactor app/addon checking and add add-on private directory.
Add a help message to the add-on plugin.
Small fixes to add-ons plugin.

Sort add-ons list, add missing cat at the end of commands and remove
trailing whitespaces in pre-release.
Unprovision all add-ons in 'pre-delete'.