Many bug fixes & code refactor
New design for chapter show page
Add quick links on chapter list

	modified:   app/assets/stylesheets/mangas.css.scss
	modified:   app/assets/stylesheets/pages.css.scss
	modified:   app/controllers/chapters_controller.rb
	modified:   app/controllers/pages_controller.rb
	modified:   app/models/chapter.rb
	modified:   app/models/manga.rb
	modified:   app/models/page.rb
	modified:   app/views/chapters/_list.html.haml
	modified:   app/views/chapters/show.html.haml
	deleted:    app/views/pages/edit.html.haml
	deleted:    app/views/pages/index.html.haml
	modified:   config/routes.rb
	modified:   test/functional/pages_controller_test.rb