application => rehttp for main file names
Minify some assets that never get altered

Normalize.css/HighlightJS don’t need to be touched as they are external
libraries so always compress them.
Update main layout file names for CSS/JS
Add in an 'embed' sub directory for tidy up
First attempt at the JS endpoint for embedding
Add helper to get correct base URL
Swap out hardcoded URL's for site_url method
Remove 'save changes' button. Nothing to save. Derrr.
Add some parentheses around custom method calls
Merge pull request #14 from rehttp/make-it-all-embedded

Embedded requests!