Finish create controller and pass basic rspec test
Pass basic rspec test, start controller test
delete upload files
modified by chensong.zjd
Merge branch 'index_create'
mark
finish create reply and show replies
change rspec test
update reply form css styles
update reply form css styles
add ajax, but still has bug
add ajax, with one bug left: After commit the reply, the reply form is still wrong
fix ajax bug
fix ajax bug and finish ajax function
fix conflic
fix bug
save
add reply floor
change reply edit style to summernote
Change reply edit style from text to summer-note. Leave one bug to fix