Fix deprecation warnings and increase deployment target to 10.13 for Xcode 14

[ksuther]

Fixes #149

I replace os_trace with os_log which causes a lot more logging in Xcode, but preserves the logging. os_log_debug is too chatty for my taste, but I didn't want to be deleting existing logging either.

[Coeur]

Can you edit your title to say 10.13 instead of 10.3? Thank you