Add timing and cues to page when provided.

We format the timing and cues based on plaintext provided using
the `simpleFormat` and `highlightTimecodes` filters provided. Essentially,
the `simpleFormat` filter just turns CR based text into paragraphs and the
`highlightTimecodes` filter wraps things that look like timecodes in <strong>
tags.

This is really the way I see us moving forward for most of these fields - we can
plain text input/output from the API with some decoration on the frontend.
fix for multiple breaks in a block
merge branch master into feat/timing_and_cues
merge branch master into feat/timing_and_cues
Merge pull request #94 from PRX/feat/timing_and_cues

Add timing and cues to page when provided.