Post merge commit
Add ActsAsTaggableOn to Gemfile
Create ActsAsTaggableOn migrations, execute migrations
Add ActsAsTaggableOn to Chapter model and Chapters controller
Fix Chapters controller typo
Rename tags column to tag_list on Chapters table; create add_tag method on Chapters_helper.rb
Add add_tag method comments
Fix add_tag method bug; now saves tags
Adds parsing to add_tag method
Add reload to add_tag method
Add chapters_with_tag and remove_tag methods
Add chapters_by_category method
Add chapters_by_category method
Add all_tags method; rename methods to add_tag_to_chapter and remove_tag_from_chapter
Merge pull request #2 from primitivereflex/master

ChaptersHelper update with additional notes and omitted method