The location of the data directory has not changed. It should be "/Users/<your-user-name>/Library/Application Support/Bitcoin". If you didn't find it, then you were probably looking in the wrong spot...
Just put the bootstrap.dat file there, and reopen Bitcoin-Qt.
You were right, Library was grayed out and I thought that I couldn't explore it, wrong, found it. Thanks!
UPDATE: I put that bootstrap.dat file in that folder and Bitcoin-qt is not recognizing that file or is just ignoring it. Is there anything else I needed to do with Bitcoin-qt in order for it to use the bootstrap.dat?
Thanks