Rewrite:
- Make compatible with The Movie Database agent;
- Add more checks before using certain data;
- Add option to add IMDb and Rotten Tomatoes score to summary field;
- Make every piece of metadata optional through the agent's preferences.
Check if ratings are set before using them.
Seperate ratings with a ★ symbol :)
Merge pull request #2 from sander1/master

Rewrite