import old blog entries

This pull request imports the old blog entries.

~~TODO: use the comments that this pull request also imports or get them via disqus API.~~
You can ignore this but fyi you can do the following (cleaner imo):

``` js

var md = [
	'---',
	'title: ' + title,
	'date: ' + formatDate(post_date),
	'author: ' + author,
	'tags:' + tags,
	'permalink' + renderLink,
	'---',
	content
].join('\n');

```