Fix channel migration script and video serialization

Fixes from 0.2.0 release:

• Channel ID migration command "--check" mode defaults to false
• VideohubVideoSerializer flattens channel ID

DJES + channel support

Merge pull request #6 from theonion/add-channel-id

Add channel ID and migration script

stupid fella over here

0.1.5

ooh boy that was dumb

recirc-embeds

0.1.4

pass recirc parameter to get_embed_url

Fixes for Clickhole

0.1.3

Nightmare time

Fixes for DRF 3.0

0.1.2

New version [ci skip]

Fixed Exception Issue

On DRF 3.0, there's no more self.opts.

Uprgade to DRF 3.0

Merge pull request #3 from theonion/django-upgrade

Django upgrade

dfp parameters for embedding

0.0.6

Version 0.0.6

Updated README and added tests for unicode characters in video titles

0.0.5

Version up to 0.0.5