Add @KitaitiMakoto to Travis notification recipients
Remove unneccessary require statement; loaded in remote-database.rb
Add book list page
Extract search form as a partial template
Insert form to book list page
Adjust title element for each page
Add Gemfile.lock to repository
Add Puma on development environment
Add navigation bar
Markup all page titles with h1
Add _id to output columns for future use
Define RemoteDatabase#delete
Add utility method to delete record to controller
Define route to delete a book
Add delete button to book list page
Extract default database options
Add a test for RemoteDatabase#delete