Add the TestFlight SDK

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Enable the TestFlight SDK on app start.

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Add a Lumberjack logger to log everything to the TestFlight logger.

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Setup the TestFlight logger

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Fix the default archive name

Signed-off-by: Blake Skinner <bskinner@mit.edu>
Tweak the basic log settings and the logger initialization

Signed-off-by: Blake Skinner <bskinner@mit.edu>