Merge pull request #18 from 0xNaN/dev
Fixing indentation
Renaming test name
Ordering functions
Ignoring TAG file
Changing arguments position
Refactoring is_listed_in
Changing arguments of is_child_of
Ordering functions
Adding TODO
Extracting function is_related_to
Renaming is_listed_in in is_listed_as_child
Introducing common_referenced_paths_for instead of list_of_referenced_paths