fix bug fb nitification can't display as fb_quesiton
fix bug

- google font on safari doesn’t display correctly : đ
- fix bug delete question doesn’t delete answer ..need more unit test
update new layout with responsible css

using basic responsible css of web2py
update drop down menu to hide user name after logged in
update css to change to red
Revert "update fix bug nori can't redirect"

This reverts commit e451b655d32c91b867e9368ca7e3182e3cba5396.
Revert f3da26b..6c61957

This rolls back to commit f3da26b04761b864d1f04682d9d66a148d4bf1fe.
fix bug like button affect other button
upddate GUI, fix bug
fix bug..add welcome page

in progress
finish first page of chuotnhat

refine later
update work-around to the bug in Facebook canvas login, update nori

-need refine
update test

- need a lot more test
update using Facebook javascript sdk

still has bug to fix
update fixing bug
fix bug
update for fb canvas version

fix bug
update index for welcome page

next: update fb_main too
update new welcome page