Update the ProxyInfo class. Calling the public methods is good from an encapsulation perspective, but causes it to throw in certain circumstances.
Change to copy member variables across and cover broken functionality with regression tests.

This needs to be checked on all other OS. I doubt this works yet on windows or linux properly.

Use Logger to report problems rather than fall over
Treat isHttpProxy nicely rather than throwing
Use preprocessor and cmake commands to limit these changes to only affect OSX
Make logging better
Test that it works