Fix broken Wiki Page History

This MR fixes the broken Page History on the Wiki pages. It turns out `WikiHelper` did not allow users to view different versions due to its omitting of query string parameters, which was necessary to specify different `version_id` parameters. Instead of this hacky approach, use manually-specified wildcard routes that match the ID field properly for slashes.

Closes #2104

Closes #1751

Closes #1592

Closes https://github.com/gitlabhq/gitlabhq/issues/9399

See merge request !1232