Added --no-color option

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## 0.7.6 (unreleased)
 
+  - Add "--no-color" as an argument and no colorized output will be used. [GH-379]
   - Added DEVICE option to the RedHat host only networking entry, which allows
     host only networking to work even if the VM has multiple NICs. [GH-382]
   - Touch the network configuration file for RedHat so that the `sed` works

bin/vagrant

@@ -5,10 +5,12 @@ require 'vagrant/cli'
 env = Vagrant::Environment.new
 
 begin
+  shell = ARGV.include?("--no-color") ? Thor::Shell::Basic.new : Thor::Base.shell.new
+
   # Set the UI early in case any errors are raised, and load
   # the config immediately, so we gather any new commands from
   # plugins
-  env.ui = Vagrant::UI::Shell.new(env, Thor::Base.shell.new)
+  env.ui = Vagrant::UI::Shell.new(env, shell)
   env.load!
 
   # Kick start the CLI