Update scripts/Vagrantfile for ubuntu 17.10

scripts/Vagrantfile

@@ -3,27 +3,27 @@
 
 Vagrant.configure("2") do |config|
 
-  config.vm.box = "ubuntu/zesty64"
+  config.vm.box = "ubuntu/artful64"
 
   config.vm.provider "virtualbox" do |vb|
     # Customize the amount of memory on the VM
     vb.memory = "2048"
   end
 
-  #Share the root of the repo
+  # Share the root of the repo
   config.vm.synced_folder "../", "/termux-packages"
-  #Disable the default /vagrant share directory, as it shares the directory with the Vagrantfile in it, not the repo root
+  # Disable the default /vagrant share directory, as it shares the directory with the Vagrantfile in it, not the repo root
   config.vm.synced_folder ".", "/vagrant", disabled: true
 
 
-  #Run provisioning scripts
+  # Run provisioning scripts
   config.vm.provision "shell", path: "./setup-ubuntu.sh", privileged: false
   config.vm.provision "shell", path: "./setup-android-sdk.sh", privileged: false
 
-  #Fix permissions on the /data directory in order to allow the "ubuntu" user to write to it
+  # Fix permissions on the /data directory in order to allow the "ubuntu" user to write to it
   config.vm.provision "shell",
     inline: "sudo chown -R ubuntu /data"
 
-  #Tell the user how to use the VM
+  # Tell the user how to use the VM
   config.vm.post_up_message = "Box has been provisioned! Use 'vagrant ssh' to enter the box. The repository root is available under '/termux-packages'."
 end