Fix import error on command

lib/vagrant-g5k/command.rb

@@ -1,5 +1,5 @@
 require 'net/ssh/multi'
-require 'vagrant-g5k/util/g5k_connection'
+require 'vagrant-g5k/g5k_connection'
 include Process
 
 module VagrantPlugins
@@ -12,21 +12,9 @@ def self.synopsis
       end
 
       def execute
-        # TODO
-        options = {}
-        opts = OptionParser.new do |o|
-          o.banner = 'Usage: vagrant g5k [vm-name]'
-          o.separator ''
-          o.version = VagrantPlugins::G5K::VERSION
-          o.program_name = 'vagrant g5k'
-        end
-        argv = parse_options(opts)
-        with_target_vms(argv, options) do |machine|
-          puts machine.config.vm.networks
-        end
-        puts "sleeping"
-        wait
+        puts 'Nothing implemented yet ;)'
       end
+
     end
   end
 end