Add TRACE() calls where appropriate to try to figure out why we are losing CLIPBOARD at times, after transferring PRIMARY to the NSPasteboard.
Use the new pbproxy_clipboard_to_pasteboard where appropriate.
(cherry picked from commit 40190675a6c1889cca3574e5d1a9c16ab74315a7)
Convert the puts usage to use DB().
Add the initial handle_image method.
Check for nil in the NSString instantiation in various places.
Add some commentary to enhance the clarity of why I did some things.
(cherry picked from commit 37361567b65241eab64e8b30cd9729d0e71a86d2)
George Peter Staplin
Jeremy Huddleston