Update README to 2.4.0

Merge pull request #24 from mudbugmedia/update-penthouse-1.0

Update penthouse 1.3

Update version to 1.0.1

Merge pull request #18 from glebm/penthouse-npm

Use penthouse from npm

Increment version to 0.4.0

Merge pull request #16 from mudbugmedia/allow-ssl-phantomjs

Allow ssl phantomjs

Merge pull request #11 from Aranda-Cyber-Solutions-LLC/master

Add methods to allow generation of critical CSS for a specific route …

Merge pull request #12 from mudbugmedia/set-expires-in

Set expires in

Merge pull request #12 from mudbugmedia/set-expires-in

Set expires in

Update version to account for the last commit by Piero