switch to PSR-4, added preFixtureRestore() / preReferenceSave() / postReferenceSave() methods

1.1.0

move to 1.1 as we are switching to PSR-4

improved html5 validation testing support

Merge pull request #130 from peschee/validator-readme-fix

Add updated validator build instructions

minor doc tweaks

Merge pull request #129 from javiereguiluz/patch-1

Proposed some tweaks and rewordings for the README

1.0.2

format tweak

1.0.1

Merge pull request #117 from liip/initializer

Initializer

1.0.0

its instanceof it seems