From now on we can use both: fanart and google for the images download. By
default it will be using fanart but if we want to use google because images
in fanart are not appropriate (or it didn't find anything because the
content is Spanish or reasons), we can add the following to the .md:
```yml
query: google
```
And it should use google for image searching instead of fanart.
From now on, the update option (no api calls involved) is the default one.
No matter if --update is being passed in the command line, it's the default option if there
is no a "new: true" variable in the yaml.
If there is a "new: true" variable in the yaml that entry will be processed as new, calling
all the apis we need to call to archive the right information.
