Added a very basic markdown blog

Added MarkdownDeep package and a HtmlHelper for rendering the markdown.
Added a Blog controller that lists posts and gets specific posts.
Dynamically adding blog posts  in the App_Data folder

Related to #1

Changed the metadata to be in one index.js file as a json array.
Added tags.
Changed the blog page to display the posts listed in the index file.
Added a heading for the Tags
Added bootstrap theme

Added the bootstrap theme via nuget package manager.