Do cleanup after deploy:update
No longer require :staging_domain to be set
Removing var_dump, #22
Merge pull request #23 from zanematthew/master

Remove `var_dump()`. fixes #22
Output protocol-relative URLs so that this works on SSL'd URLs without mixed content warnings.

props @tollmanz. fixes #8.
Bump WP Stack CDN drop-in version to 0.3