Removed -Wno-unused-but-set-variable from CB Project.
Commented out many unused by set variables from the source code.
Trying to convert code to wxWidgets 3.0:
Added test on PNG_LIBPNG_VER_MINOR because wxWidgets uses a much newer version of libPng.
Removed many _T() macros.
Replaced a few c_str() with wx_str() methods; this is not the proper fix; but in compiles.
Removed some wxT()macros.
Changed "if (player){" to "if (!player.IsEmpty()){" this is just a guess on the right thing to do.
Changed the static CB target to wxWidgets version 30 instead of 28.
Instead of checking PNG_LIBPNG_VER_MINOR decided PNG_LIBPNG_VER_SONUM was better.