simpleusers can have only one ballot

[magwas]

Behaviour: Manage votes/Obtain ballot;if adminkey is anon, only one ballot can be issued

@tested_feature("Manage votes")

@tested_operation("Obtain ballot")

@tested_behaviour("if adminkey is anon, only one ballot can be issued")

if the user tries to obtain a second ballot, an exception is thrown

Deviation in model

[colorimeter]

grab

[valentinbujdoso]

Please assign it to your name.

[magwas]

he cannot. does not have write access to the repo. this is what I have written about in email. your write access will also be revoked soon.

[valentinbujdoso]

Then sorry :(

[colorimeter]

@magwas : done, put to review.