* A number of small gameplay bugs are now fixed.  See Changes.md for
  details.

* Added a default font for the SDL version to use if none is specified.

* Replaced uses of strncpy with a wrapper that ensures the result is
  always null-terminated.

* Fixed a bug in the launch script that was preventing it from working
  when invoked via symbolic link.

* Running the relarn executable in the src/ directory now works again.
  As a side effect, it is no longer possible to set a hard-coded
  installation path at compile time.  The path now comes from the
  launch script via an environment variable.

* It should no longer be necessary to edit the Makefile or config.mak
  for out-of-the-box builds.

* Added an experimental script to cross-compile for Windows on *nix
  systems using MinGW.

* Updated the build instructions.

* Various other tweaks.