Added ancestry gem to Gemfile
Condensed tutorials, pages, and projects into a single modular Node type
Another major overhaul of content structure; Cleaned up view logic, but there's still more to be done
Added related content panel and streamlined view logic further
Removed procedures and added nodes to taggings
Changed related content display into size 4 cards
Added heading_shade method in NodesHelper to automatically determine panel-heading color based on value from  @node.root?
Added heading_shade method in NodesHelper
Method will automatically determine panel-heading color based on value from @node.root?
Merge branch 'refactor-content-types' of github.com:devynspencer/raida into refactor-content-types
Added about and settings tabs, and continued to refactor navigation elements
Added root/parent info to sidebar within nodes/show sidebar
Merge pull request #51 from devynspencer/refactor-content-types

Content types refactored into single "node" type