Added note category.
Added note scaffold
Added title to notes, and added notes to nav bar
Added uncategorized category addition on migration.
Removed turbolinks so ckeditor works on first load.
Cleaned up note page, and added ckeditor.
Reformatted show page, and added an edit link from it
Added last viewed setting, and total view incrementing
Rewrote note listing to show categories, add view counts, and more
Removed all icons for show, edit and destroy.
Changed sorting to id descending rather than ascending
Added note HTML retrieval helper, and added instructions to measurements