unify crumbs + lock icons + show lock in breadcrumb

@steved555 @pswadi-zendesk 

as a nice reminder that you locked the stage / have to unlock when you are done

![screen shot 2014-12-12 at 7 02 53 pm](https://cloud.githubusercontent.com/assets/11367/5422308/aba04854-8231-11e4-9e4f-76de92ccff09.png)


### Risks
 - None
There is enough data by this line, so no more data processing is needed.
My point was if we separate display and logic properly we can avoid using `html_safe`
If you consider the use of `html_safe` here is fine, then lets proceed with the that.