Run apt-get update after adding ppa
Escape variable in nginx post-deploy script

`$http_upgrade` is supposed to be a variable set by nginx. It was now substituted by nothing.
Create separate copy target in Makefile
Add pre-deploy hook

Adds a pre-deploy hook passing the name of the app and the image. The
hook allows plugins to setup external resources (such as databases) and
modify the image (running pre-deployment script from the app) before the
application is deployed by dokku.
Merge pull request #67 from asm89/pre-deploy-hook

[WIP] Add pre-deploy hook
Merge pull request #64 from asm89/patch-2

Escape variable in nginx post-deploy script
Merge pull request #62 from asm89/patch-1

Run apt-get update after adding ppa
Merge pull request #65 from asm89/makefile

Create separate copy target in Makefile
Fix vagrant test setup
Merge pull request #68 from asm89/vagrant-test-setup

Fix vagrant test setup
Add me to authors and sort
Merge pull request #69 from asm89/authors

Add me to authors and sort
Fix placement of my username
Merge pull request #70 from rhy-jot/master

Fix placement of my username
refactoring most of bootstrap into makefile. bootstrap supports branch checkouts, and using existing cloned dokku repos
lets avoid pointless redundancies
ensure that the original http_host gets passed in the proxy to the app
Add progrium/pluginhook to README
Merge pull request #73 from asm89/patch-3

Add progrium/pluginhook to README
Fix typo