basic CRU paths for site articles
added markdown and tokenfield typeahead support
added syntax highlighting to markdown
added new/edit buttons for articles
updated getting started page to have a link to articles index
refactored markdown renderer
styling of articles complete
small updates to UI
added a couple of scenarios to start
added cuke and controller specs
added articles link to navbar, added and refactored cuke steps
added titles to a couple of pages
merged with upstream
couldn't resist, moved _contents to visitors/index.html and added title
added preview button, added a few more scenarios to cukes
ping to Thomas, implemented one cuke scenario
merged upstream
pulled latest from Bryan
added scenarios to articles.feature and made them go green
added controller spec for preview action