* add rights for user.
Merge branch 'master' of github.com:xirang/chanzhieps
Merge branch 'master' of github.com:xirang/chanzhieps
 + add oppenID table.
 * judge whether curl function installed or not.
 + add translation of sina.
 * adjust the code.
 + add setAppkey function.
 + add sina callbackUrl config.
 + add functions for sina login.
 * adjust the style of callback file.
 + add sina login.
 + add setappkey page.
 * adjust the style of callback.
 + add openid-sina.gif.