Show settings-cog and back button

closes #3925
- Make user-settings-cog reappear
- Show [< Users] back button

@PaulAdamDavis For some reason the user-settings-cog hides behind the cover image. Which class do I need to apply here?

![screen shot 2014-09-02 at 23 52 11](https://cloud.githubusercontent.com/assets/176576/4126401/c56c0812-32eb-11e4-8c4d-840aef3f2207.png)

Ember automatically added active to the element which applied some unwanted
styling on it. (top gradient shadow)
On 3 Sep 2014 16:45, "Matt Enlow" <notifications@github.com> wrote:

> In core/client/templates/settings/users/user.hbs:
>
> > @@ -1,17 +1,17 @@
> >  <header class="settings-subview-header">
> >      {{#unless session.user.isAuthor}}
> > -        {{#link-to "settings.users" class="button has-icon users-back" tagName="button"}}<i class="icon-chevron-left"></i>Users{{/link-to}}
> > +        {{#link-to "settings.users" class="btn btn-default btn-back" tagName="button" activeClass=""}}<i class="icon-chevron-left"></i>Users{{/link-to}}
>
> PS, what's up with the activeClass=""
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/TryGhost/Ghost/pull/3944/files#r17053908>.
>