Format results for clarity

[Ryan Mason-Davies]

Results should be formatted to make the results of a test easier to acknowledge. The format should be more similar to that of Rspec:

the subject
    should do something
    when valid
        should do something else

Note that the groups are nested within one another.

The results should also display whether the example is pending, or has failed, as in Cedar:

the subject
[F] should do something
    when valid
[P]     should do something else

Here, the first example has failed, and the second is pending.

[Ryan Mason-Davies]

Behaviour moved up to Inline: ryanmasondavies/Inline#16

[Ryan Mason-Davies]

Waiting on ryanmasondavies/Inline#16.

[Ryan Mason-Davies]

Added with ryanmasondavies/Inline#16.