Implementation of a Issue Voting
Like in #6945 described (but not only for redmine.org) ...
It would be nice to have a ticket voting like in the most popular ticket systems (+1).
This is very useful to define which issue / request has the most backup from the community/customers.
It would be also very nice to have a little overview of all users which have voted for implementation.
A user should...
... be able to vote for an issue
... remove his vote from an issue
... see which other users had voted for this issue
What do you thing about it?