No need to have different URL for the different voting type, one is enough
Adjust the action url in the vote templates now that there is a unique URL for voting
Adjust unit-tests to the unique URL for voting

- Replace vote_range and vote_simple by vote
- Do not test for redirect as it will always return the proper view
Simplify vote_range and vote_simple since they are no longer flask endpoints

- We can directly give them the proper election object, no need to query
it twice
- We can skips the tests we do earlier (avoids doing them twice)
Merge pull request #24 from fedora-infra/unique_vote_url

Unique vote url