add hot book logic
Merge branch 'master' of https://github.com/pymmrd/ireader
fix bug
git reset test
ireadery
Merge branch 'master' of https://github.com/pymmrd/ireader

Conflicts:
	ireader/book/handlers.py
	ireader/book/utils.py
	ireader/templates/book/category.html
Merge branch 'master' of https://github.com/pymmrd/ireader
merge: 合并new_style和最新master；