[Production] Modify build process for deployment

* In production the `spiderable` package depends on `phatomjs`
* The `grunt:run` task is never run in production
[Add] highscore: Style quiz selector
[Fix] config.ejson: Game name and URL
[Fix] Quizzes: Wrong filenames in "Frankring VM"

- Remove "Hvor gammel bliver en ræv?" quiz
- Remove "Den første quiz" quiz
[Submodule] Update lib/core