Disabled the guest additions check in the vagrant up

Author: kristenjacobs

1-network-namespace/Vagrantfile

@@ -13,4 +13,5 @@ Vagrant.configure(2) do |config|
       s1.vm.provision "shell", inline: $script
   end
   config.vm.box_check_update = false
+  config.vbguest.auto_update = false
 end

2-single-node/Vagrantfile

@@ -13,4 +13,5 @@ Vagrant.configure(2) do |config|
       s1.vm.provision "shell", inline: $script
   end
   config.vm.box_check_update = false
+  config.vbguest.auto_update = false
 end

3-multi-node/Vagrantfile

@@ -19,4 +19,5 @@ Vagrant.configure(2) do |config|
       s2.vm.provision "shell", inline: $script
   end
   config.vm.box_check_update = false
+  config.vbguest.auto_update = false
 end

4-overlay-network/Vagrantfile

@@ -40,4 +40,5 @@ Vagrant.configure(2) do |config|
       s2.vm.provision "shell", inline: $script
   end
   config.vm.box_check_update = false
+  config.vbguest.auto_update = false
 end

Makefile

@@ -22,3 +22,7 @@ vagrant-destroy: $(SUBDIRS)
 	    cd $$d && vagrant destroy --force && cd ../ ; \
 	done
 
+clean: $(SUBDIRS)
+	for d in $(SUBDIRS); do \
+	    cd $$d && make clean && cd ../ ; \
+	done