re #20 - reduced line-height for headers
re #20 - using h1s for titles and proper html5

added <article><header><sections> for blog & post
re #24 - Fixed main page title and descriptions:
Merge branch 'refs/heads/feature/24-title-and-description'
Merge branch 'refs/heads/feature/27-eventsnav'

Conflicts:
	_site/sitemap.xml
Merge branch 'refs/heads/feature/20-heading'

Conflicts:
	_site/css/style.css
	_site/sitemap.xml
Fixed merge conflict