status editable

[``* `#17013` User is shown as deleted incorrectly``](http://community.openproject.org/work_packages/17013)

Please mark is as work in progress
@NobodysNightmare yeah, it's not obvious, this is a reason I don't quite fancy the current solution, but it allows the view rendering to be delayed until the promises are resolved. Another option is to block the individual inputs until the form promise is resolved or only request the form object on its first use (and memoize it in the service). I would wait until we have the new details pane layout, but I can change it if it's too unorthodox for the moment.