Implemented user control

models/database.py

models/forms.py

modules/admin.py

server.py

static/css/style.css

static/js/sorttable.js

templates/admin_index.html

templates/admin_user_edit.html

templates/admin_user_index.html

templates/admin_user_new.html

templates/index.html

templates/layout.html

templates/login.html

templates/macros.html