Run docker without sudo and won't check locale settings

Author: GU Yu (Byron)

README.md

@@ -121,7 +121,7 @@ cd swagger-codegen
 vagrant up
 vagrant ssh
 cd /vagrant
-sudo ./run-in-docker.sh mvn package
+./run-in-docker.sh mvn package
  ```
 
 #### Public Docker image

Vagrantfile

@@ -23,12 +23,14 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
 
   #Provision
   config.vm.provision "shell", inline: <<-SHELL
+    sudo touch /var/lib/cloud/instance/locale-check.skip
     sudo apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
     sudo sh -c 'echo "deb https://apt.dockerproject.org/repo ubuntu-trusty main" > /etc/apt/sources.list.d/docker.list'
     sudo apt-cache policy docker-engine
     sudo apt-get update
     sudo apt-get upgrade -y
     sudo apt-get install -y docker-engine
+    sudo usermod -aG docker vagrant
   SHELL
 
 end