I have modified the link on the sidebar in order to trigger a full refresh of the page to avoid a bug where the contents loaded in the main page were shown also in the User's profile page;
added an entry in SubFeed in order to show the results of these new tabs and adapted the pre-existing logic accordingly;
modified routing logic in User.js in order to accept the new routes and not have conflicts with those already existing.
https://github.com/utopian-io/utopian.io/pull/374/files#diff-24b8cc3983e0588405d4381b614a34bbR17
https://github.com/utopian-io/utopian.io/pull/374/files#diff-ba737c6f7e28c423c52518275eb1177fR274
https://github.com/utopian-io/utopian.io/pull/374/files#diff-ba737c6f7e28c423c52518275eb1177fR274
https://github.com/utopian-io/utopian.io/pull/374/files#diff-ba737c6f7e28c423c52518275eb1177fR292
https://github.com/utopian-io/utopian.io/pull/374/files#diff-ba737c6f7e28c423c52518275eb1177fR355
