verson init
completed the main RequestHandler,including login,register,item pages,index page
version0.9,finished normal user interface
fix sql operations;add memcached;add multi-process mode
add a cache for book_count
Merge branch 'master' of https://github.com/tigerstudent/bookstore into branch2

initly create a repo on github
Merge pull request #1 from tigerstudent/branch2

Branch2