Merge pull request #4 from zts1993/master

settingsvalue tag
Merge pull request #5 from zts1993/master

增加/node 和/topic
create user profile when not existent
fix user-info page avatar style
hopefully an improvement in front-end :)
update style and layout for password reset page
Use django's message system to show some infomation in forum app
add missing respond.min.js
update frontend
update all-node
fix admin
fix pagination display
django-pagination should be in requirements.txt
update functionality and layout
FIX some known issues

- admin should be able to edit _ALL_ topics
-  url should start with ^
-  topics that are marked deleted should not be listed
fix field name

the field which stores marked up content in topic model is rendered_content however it is content_redered in post model, which was a bug. the two fields are both named content_rendered now.
Update requirements.txt

see diff
replace try/excpt with if exists()

foo.objects.filter().exists() looks clearer
update the way to display messages

use django messages to display messages in reg, login and change password view
checkbox display the current state