usr_name -> mail address
Merge branch 'mia_dev' into dev
since mia remove th index.htm to index.html, the welcome controller
should update to avoid the missing template issue.
Merge branch 'dev' of https://github.com/us4us/seed into dev
fix:can't find image
Merge branch 'mia_dev' into dev
change the form name to email, since we only support email login now
add main.js to support dynamic update the post url according to user's
click on signin or signup
merge mia
rm main.js since it merge into script.js