Add/unify not logged user messages

[saeta-eth]

No description provided.

[franciclo]

the consistency of the not logged state is good, but i find a bug, whenever i login and i get redirected to a topic there is an error in the console and the topic view is not fully loaded.
I tried it with topics where i already voted, with every kind of action, can you check that out before merging?

[saeta-eth]

I can't reproduce the issue mentioned above. After logging successfully, I always was redirected to the previous topic.

To make this changes I have followed these rules:

• If the users are not logged and topic is not close, they can't vote the topic. (Login required)
• If the users are voted and topic is not close, they can change their votes. (Login required).
• If the users are logged and topic is not close, they can vote .
• If topic is close, the users (logged or not) can see the results.