Mac OS: wrong location for meek browser profile

With Tor Browser 6.0 and newer, Meek is not working at all for some Mac OS users. Anonymous said on https://blog.torproject.org/blog/tor-browser-60-released: Note to all OSX users encountering similar error: make sure before upgrade/clean install for 6.0+ that user installing has sudo privileges. TorBrowser needs write access to /Applications/TorBrowser-Data/ which will fail unless the user is an administrator. sudo privileges can be removed after installation and first run without problems. Kathy and I were able to reproduce this problem on Mac OS 10.11.5 using a clean install of Tor Browser 6.0 (placed in /Applications) when logged in as a non-admin user.

The problem is that the meek-client-torbrowser code that creates the Meek browser profile does not account for the fact that the user data should be stored under ~/Library/Application Support/TorBrowser-Data when the browser is in /Applications. In fact, Meek works correctly when running as a privileged (admin) user, but the Meek helper profile is incorrectly placed under /Applications/TorBrowser-Data/ (the main browser profile is correctly placed under ~/Library/Application Support/TorBrowser-Data).