add http authentication check
start to develop login form
developed basic func
try to use gravatar
change userlist to array from hash
add some view setting
change some logic and add tooltip func
add the comment of characters limit of username & password.
change rials top page to login page
add new redirect 'login/index' => 'cluster/index' & model test
add testcase of normal login
undertook design
developed login page.(I have to consider responsive)
modify some logic
add number to rspec test case
I modify rspec's password
try to use center layout
modify image
deactivate responsive design of login page
modify image