Remove dep on Aruba's internal global config and use the method presc…

…ribed in Aruba's README to modify exec path

features/support/env.rb

@@ -2,5 +2,5 @@
 
 Before do
   @aruba_timeout_seconds = 5
-  ENV['PATH'] = ([File.expand_path('executables')] + @__aruba_original_paths).join(File::PATH_SEPARATOR)
+  ENV['PATH'] = "#{File.expand_path(File.dirname(__FILE__) + '/../../executables')}#{File::PATH_SEPARATOR}#{ENV['PATH']}"
 end