Move relative_permalinks_deprecation into page
Move aggregate_post_info into post
Combine keep_file_regex
Remove source from Post, Page, and StaticFile constructor (it's already beening passed as part of site)
Change arguement to path for Post, Draft, Page and StaticFile. Also modify read_yaml to take a path.
Combine all read methods together and remove the recursion
Combined the posts, pages, and statics into one array
Extract parent object from posts and pages
Removed lsi messages