Made it so that the 'Back to Turn X' and 'Back to Start' menu items work with .bz2 saves.
disable "show track title feature" for Win-MSVC, Win-MinGw and Mac

(from commit 3440218c0fe5a2a5306ab1c91a6e8f19679f7ef0)
Actually accomplish what a6cf1a69658f1320c3d3eb485ea59c83d2d8f003 was supposed to accomplish.
Remove exposed parameter and private member for bzip2 compression.

For now, just pull it directly from preferences.
Whether we should emulate compress_saves or make compress_saves work the same way is a different concern.
Don't depend on boost::thread when not using libANA
Remove resolutions that are no longer supported
Merge branch 'master' into travis
We don't need boost::thread anymore