respond to xhr requests
yield when request is xhr and do not generate layout
add next_page class for endless-scroll
return the current page
escape javascript for _ajax templates
fixed bug in site controller
added more specific filters for view
used filter for pages
use all filters for snippets
added filter for article
change default page filter to html from markdown
remove loading up support files from spec each run
removed indent method for page_parts
check for xhr?
updated filter spec for new filter groups
removed indent from page_part for haml