make .env.sample more clear - angled brackets not required
fix for drafts showing in related articles
using indexable? method of Article rather than string comparison to remove drafts from related article sidebar widget
method to update legacy articles: user is prompted to correct auto generated markdown and make the article non-legacy
legacy article switching for web services
added scope to order articles by popularity (access count)
added scope to filter articles by a given category name
popular articles on home page are now generated from access counts.  refactored some methods to scopes. removed unused font import.
fixed style issues for new home page popular categories html
fixed stylesheet bug
added list of articles to contact#show page in activeadmin CMS
admin category#show page now includes index of articles for that category.  support for guides in the contact show and category show pages.
readibility
link to contact for articles in CMS listed on admin#category#show
improved readiblity of attr_accessible for Article
formatting
writers, editors and admins have slightly differetn interfaces when editing quick answers.  Admin can reassign the owner of an article and its reviewer.
user roles are now exlusive - a user can only have one role
article reassignment for web services and guides.  articles except guide step refactored to use single form template and shared partials.
Merge remote-tracking branch 'origin/development' into development