modified user_mailer.rb
modified signin_page_spec
modified user_controller
modified
modified u_controll-listuser-css
resoled som bug
updated layout-fileter login
Merge branch 'team1' of https://github.com/GitTrainer/FileCloud into Hoa-ShareFile
modified showuser
Merge branch 'team1' of https://github.com/GitTrainer/FileCloud into team1
add homepage
modify show folder
modify show user
finish authentication and authorize for user upload file
finish authentication and authorize for user interact category
create avatar
Merge branch 'team1' of https://github.com/GitTrainer/FileCloud into khanhhd-user
delete avatar-binding
delete vavatar
modify gitignore file