Added function in template engine.
Added setup function in template
Added has_perm function
Modified code to fit new flask_rbac.
Modified style of sign in html
Modifed base.html, add a link.
Added rule of permission.
Added base template of back-end
Fix relationship between models(SzuAccount and user/college/teacher)
Merge branch 'fix/user-model' into feature/back-end-user-manage
Added user manage, added paginate macro
Update style of pagination
Instead edit/delete icon of text.
Added Flask-SeaSurf into requestments.txt
Create seasurf for app
Merge branch 'extensions/flask-seasurf' into feature/back-end-user-manage
Added MasterUserForm and MasterSzuAccountForm.
Added function to update and delete user.
Update url in base.html
Added new form, (MasterNewUserForm).