Composer and Packagist Release

This version is non backwards compatible (sorry!)

Hopefully a good change though: naming scheme has changed from under_scores to the community prefered camelCase for method names.

There are no functionality changes – so you just need to change the naming scheme to adjust.

SecureHeaders is now a composer package on packagist.

So installation should be nice and easy now!

v1.0.1 contains a naming related bugfix