Add automatic confirmation mail after changing e-mail adress.

app/auth/views.py

@@ -139,6 +139,7 @@ def profile():
             current_user.confirmed = False
             db.session.add(current_user)
         db.session.commit()
+        resend_confirmation()
         return redirect(url_for('auth.profile'))
     return render_template('auth/profile.html.j2', form=form,
                            title='Profile')

app/templates/auth/email/confirm.html.j2

 <p>Dear {{ user.username }},</p>
-<p>Welcome to <b>Opaque</b>!</p>
 <p>To confirm your account please <a href="{{ url_for('auth.confirm', token=token, _external=True) }}">click here</a>.</p>
 <p>Alternatively, you can paste the following link in your browser's address bar:</p>
 <p>{{ url_for('auth.confirm', token=token, _external=True) }}</p>

app/templates/auth/email/confirm.txt.j2

 Dear {{ user.username }},
 
-Welcome to Opaque!
-
 To confirm your account please click on the following link:
 {{ url_for('auth.confirm', token=token, _external=True) }}