Write Pages to with correct directory structures and index.markdown files, instead of mixing in with _posts
Realized that using 'page_name' was more accurate than page_title
Removed unused call to post_parent column in the posts_query and the rename parent_path function since it's  functionality was no longer reflected in its name.
Updated concatenation operator to '+', as we're just working with strings.
Merge pull request #137 from quiddle/master