Default VM name is now properly env cwd folder name

CHANGELOG.md

@@ -1,5 +1,7 @@
 ## 0.6.4 (unreleased)
 
+  - Default VM name is now properly the parent folder of the working directory
+    of the environment.
   - Added method to `TestHelpers` to assist with testing new downloaders.
   - `up --no-provision` works again. This disables provisioning during the
     boot process.

config/default.rb

@@ -27,7 +27,7 @@ Vagrant::Config.run do |config|
 
   config.vm.customize do |vm|
     # Make VM name the name of the containing folder by default
-    vm.name = File.basename(File.expand_path("../", Vagrant.source_root)) + "_#{Time.now.to_i}"
+    vm.name = File.basename(config.env.cwd) + "_#{Time.now.to_i}"
   end
 
   # Share the root folder. This can then be overridden by