Update Makefile to include vagrant-cloud release target.

Makefile

@@ -1,6 +1,8 @@
 
 PACKER:=$(shell which packer)
 PACKER_BUILD=build
+VERSION=
+BOX=palantir/drupalbox
 .PHONY: drupalbox
 
 all:
@@ -13,3 +15,21 @@ vmware:
 	$(PACKER) $(PACKER_BUILD) -only=vmware-iso -var-file=drupalbox/ubuntu.json -except=vagrant-cloud drupalbox/drupalbox.json
 
 drupalbox: virtualbox
+
+vagrant-cloud:
+ifeq ($(VERSION),)
+	@echo
+	@echo This command will release a new version of $(BOX):
+	@echo
+	@vagrant cloud box show $(BOX)
+	@echo
+
+	@echo "Please provied a version number by re-running with this syntax:"
+	@echo "  make vagrant-cloud VERSION=1.2.3"
+	@echo
+else
+	@echo
+	@echo Creating a new release: '$(BOX) $(VERSION)'
+	@echo
+	packer build -only=virtualbox-iso -var-file=drupalbox/ubuntu.json -var 'cloud_dest=$(BOX)' -var 'cloud_version=$(VERSION)' drupalbox/drupalbox.json
+endif

docs/Updating-Existing-Box.md

@@ -24,13 +24,13 @@ packer build -var-file=drupalbox/ubuntu.json drupalbox/drupalbox.json
 packer build -only=virtualbox-iso -var-file=drupalbox/ubuntu.json drupalbox/drupalbox.json
 ```
 
-Both of these approaches run similar commands, but running packer directly gives you the opportunity to use flags to manipulate the build process in a one-off fashion. Try `packer --help build` for details.
+Both of these approaches run similar commands, but running packer directly gives you the opportunity to use flags to manipulate the build process in a one-off fashion. Try `packer --help build` for details, and see the `Makefile` for this project's standard usage.
 
 ## Releasing a box to Vagrant Cloud
 
 ```
-vagrant login
-packer build -only=virtualbox-iso -var-file=drupalbox/ubuntu.json -var 'cloud_dest=palantir/drupalbox' -var 'cloud_version=999' drupalbox/drupalbox.json
+vagrant cloud auth login
+make vagrant-cloud
 ```
 
 ## Updating Ubuntu

drupalbox/drupalbox.json

@@ -269,6 +269,6 @@
     "ssh_username": "vagrant",
     "update": "true",
     "cloud_dest": "",
-    "cloud_version": "1.0.{{timestamp}}"
+    "cloud_version": ""
   }
 }