add accounts/register
	modified:   mysite/mysite/accounts/templates/login.html
	modified:   mysite/mysite/accounts/templates/logout.html
	new file:   mysite/mysite/accounts/templates/register.html
	new file:   mysite/mysite/accounts/templates/register_success.html
	modified:   mysite/mysite/accounts/urls.py
	modified:   mysite/mysite/accounts/views.py
	modified:   mysite/mysite/article/templates/base.html
	modified:   mysite/testDB.db