Now we bump versions by default, which is more useful in day-to-day usage.  Added --no-bump-version, good for testing the bundling process.
Added ability to upload to a vagrant-catalog server.
Modified template variable naming to match vagrant-catalog.
Changed default download-url-prefix to allow vagrant-catalog to automatically compute the value to work with that catalog.
Fixed install instructions
Fixed filename bug when metadata.json did not exist and was created for the first time
Added --upload-method switch; Now using 'rsync --progress' by default for uploading since these files can be huge and it's nice to see that something is actually happening.
Loosened up phpunit version requirement