Merge pull request #1 from google/master

Getting new stuff from cbreuel to this fork.
Interest target and angle on overlay texts

Vogon can now target its campaigns by any of the available options in
AdWords for Video. Vogon can also overlay texts at an angle. Poetry
just got a little fancier!
Included ImageMagick installation instructions

Included ImageMagick installation instructions to the README file.
Merge pull request #4 from google/interest-targeting

Interest targeting