Use do-end style instead of braces
Move utility links to bottom of page
Make iframe smaller to show utility links
Move link to upload from books#show to global nav
Use nav element for global navigation
Use ul for items in global nav
Add link to open book in another window
Show book list
Extract book list template to parital template
Fix a bug that user_it not set on saving books record
Show book list on user page
Retrive books records on root page for template
Append end tag of iframe
Use textarea instead of input for embedding iframe tag
Add validation for users.name
Change link text
Make site title a link to root
Add book title at books#show
Move uploader to lib
Use subdirectory for stored EPUB fies