corrected usage of html5 article tags
updated post teaser article tags usage and introduced a new article class
added missing alt tags
updated tag cloud to be valid html
updated header size from h3 to h1
standard excerpt handling restored because the redcarpet stuff is broken
introduced new sizes for h1/h2 in post and teaser
updated excerpt and headings from h4 to h2
removed excerpt token (broken in redcarpet) and updated headings from h4 to h2
removed broken excerpt
added new post