Update html templates markup to follow h5bp. Closes #20

This PR refactors markup used in header of the html pages templates to follow advices from @h5bp project:
https://github.com/h5bp/html5-boilerplate/blob/master/src/index.html
Additional feature of this PR is to bring compatibility with @Bootstrap project @bootlint tool - as **MVC** templates tend to use that framework frequently - this will remove some work from users of templates hopefully :D.