Render ctx

[apotonick]

The following function could be used in two ways

Developer.render(ctx) #=>
(some table)
| params          | {bla: 1, blubb: 2, ...... (it only shows so much that it fits in one line)
| current_user: | #<User name: "Yogi">

We can then use that for manual debugging and for ctx tracing when using wtf?.