allow generated password for new osusers

- change osusers.admin.UserCreationForm to allow empty password input which
  triggers the creation of a new password

docs/changelog.rst

@@ -1,6 +1,10 @@
 Changelog
 =========
 
+* :feature:`-` allow empty password input in
+  :py:class:`osusers.admin.UserCreationForm` to allow generated passwords for
+  new users
+
 * :release:`0.3.0 <2014-12-27>`
 * :feature:`-` call create/delete mailbox tasks when saving/deleting mailboxes
 * :support:`-` use celery routers from gvacommon

gnuviechadmin/osusers/admin.py

@@ -27,10 +27,14 @@ class UserCreationForm(forms.ModelForm):
     A form for creating system users.
 
     """
-    password1 = forms.CharField(label=_('Password'),
-                                widget=forms.PasswordInput)
-    password2 = forms.CharField(label=_('Password (again)'),
-                                widget=forms.PasswordInput)
+    password1 = forms.CharField(
+        label=_('Password'), widget=forms.PasswordInput,
+        required=False,
+    )
+    password2 = forms.CharField(
+        label=_('Password (again)'), widget=forms.PasswordInput,
+        required=False,
+    )
 
     class Meta:
         model = User