Add icons
Add icons to titles and unify layout in questionnaire management page
Fix title dismatch and add namespace to accounts app
Modify login template
modify url names
translate some words into english
fix js bug
initial ajax
remove some js in investmanager/index.html
merge story-7 | apply ajax
Fix bugs of paticipant email with Request COOKIE
Merge branch 'Results' of github.com:BuaaBoys/Online-questionnaire-survey-system into Results