Objectives to be done before release for testing #34
Description
Another parent ticket - want to do these till "beta release"/MVP (end of March hopefully!!):
- Account management, so users can update username, email, password (was alerted to this by someone and is actually a must-have, I think)
- Internal messaging for arranging "handover" of books, rather than giving people each others' emails
- Display flash messages, for example when somebody has requested a book
- Improve styling (book grid, profile page)