Simplify the vagrant workflow

- Moved from wget to cloning the repository
- Add acl-add command to Make
- Modify the docs to use the new methodology

Makefile

@@ -6,7 +6,7 @@ STACK_URL ?= https://github.com/progrium/buildstep.git
 PREBUILT_STACK_URL ?= https://github.com/progrium/buildstep/releases/download/2014-03-08/2014-03-08_429d4a9deb.tar.gz
 DOKKU_ROOT ?= /home/dokku
 
-.PHONY: all install copyfiles version plugins dependencies sshcommand pluginhook docker aufs stack count
+.PHONY: all install copyfiles version plugins dependencies sshcommand pluginhook docker aufs stack count acl-add
 
 all:
 	# Type "make install" to install.
@@ -71,3 +71,7 @@ count:
 	@find plugins -type f | xargs cat | wc -l
 	@echo "Test lines:"
 	@find tests -type f | xargs cat | wc -l
+
+acl-add:
+	vagrant ssh -- sudo sshcommand acl-add dokku $(USER)
+

docs/installation.md

@@ -85,10 +85,10 @@ sudo BUILD_STACK=true make install
 
 - Download and install [VirtualBox](https://www.virtualbox.org/wiki/Downloads)
 - Download and install [Vagrant](http://www.vagrantup.com/downloads.html)
-- Download Dokku (latest stable)
+- Clone Dokku
 
     ```
-    wget https://github.com/progrium/dokku/archive/master.zip
+    git clone git@github.com:progrium/dokku.git
     ```
 
 - Setup SSH hosts in your `/etc/hosts`
@@ -115,10 +115,10 @@ sudo BUILD_STACK=true make install
     vagrant up
     ```
 
-- Add SSH key to Dokku using `sshcommand acl-add <user> <ssh-key-name>`, e.g.:
+- Add SSH key to Dokku using `sshcommand`:
 
-    ```
-    cat ~/.ssh/id_rsa.pub | ssh -i ~/.vagrant.d/insecure_private_key vagrant@dokku.me "sudo sshcommand acl-add dokku progrium"
+    ```bash
+    cat ~/.ssh/id_rsa.pub | make acl-add
     ```
 
 You are now ready to deploy an app or install plugins.