first pass at providing sorting for collections and pages
removing debugging statements
allowing pages to be defined in json with a single layout file
showing how a page can still be added to the files object and access information from the pages in the options context
ignoring some of the pages that include obsolete helpers
Merge branch 'master' of https://github.com/assemble/assemble into multi-pages
merge with master and removing the ignores for the temp fix
Merge pull request #234 from doowb/multi-pages

Everything looks good to go!