Merge pull request #4 from bcho/master

auto login
format the code
fixed auto login bug
Update README.md
Update README.md
code format
Merge branch 'master' of github.com:vtmer/gdut-jwgl-helper
indentation
update regular expression

有时登录页的URL不会有default2.aspx，所以改一下这个正则表达式。
login failure fallback
...
fixed user settings
fixed user setting saving
fixed duplicated var statement
used $.ready instead of dom onready event, due to the run at document_end
behaviour may not trigger onready event.
make the code more modular