fix(bug): Correctif vagrantfile

Vagrantfile

@@ -2,12 +2,12 @@
 # vi: set ft=ruby :
 
 Vagrant.configure("2") do |config|
-  config.vm.box_url = "https://atlas.hashicorp.com/ARTACK/boxes/debian-jessie"
-  config.vm.box = "ARTACK/debian-jessie"
+  config.vm.box_url = "https://atlas.hashicorp.com/debian/jessie64"
+  config.vm.box = "debian/jessie64"
 
-  config.vm.provider "virtualbox" do |vbox,override|
-    vbox.customize ["modifyvm", :id, "--memory", 1024]
-    vbox.customize ["modifyvm", :id, "--cpus", 1]
+  config.vm.provider :virtualbox do |v, override|
+    v.customize ["modifyvm", :id, "--memory", 1024]
+    v.customize ["modifyvm", :id, "--cpus", 1]
     override.vm.synced_folder ".", "/opt/demoinstance", :id => "vagrant-root", owner: "root", group: "root", :mount_options => ["dmode=777", "fmode=777"]
   end
 
@@ -20,4 +20,4 @@ Vagrant.configure("2") do |config|
       sh.path = "ressources/vagrant_setup.sh"
     end
   end
-end
+end