Don't check safehoused cars
Merge pull request #14 from Brainscrewer/ob_filter_safehouse

Don't check safehoused cars
Small bugfix

- Now works with other cars that have a role assigned
- Use single quotes for strings
Merge pull request #15 from Brainscrewer/ob_filter_safehouse

exclude cars in safehouse from selection when they have other roles assigned too
JSHint: Add missing semicolon.
JSHint: Strings must use singlequote.
JSHint: Did you mean to return a conditional instead of an assignment?
JSHint: Expected an assignment or function call and instead saw an expression.