Fixes #138
Instead of throwing an ArgumentNullException, if the user is null the methods now return null. This seems to not break anything, because the output of these methods is currently not used anywhere the user may be null, by default. Safely using these methods will now require null-checks.
Fixes #138 Instead of throwing an ArgumentNullException, if the user is null the methods now return null. This seems to not break anything, because the output of these methods is currently not used anywhere the user may be null, by default. Safely using these methods will now require null-checks.