[PATCH] Fix memory leak in replay mode

[kanetaka]

Temporary buffer allocation in wmain() causes memory leak in replay mode, because free() is skipped in case of replay mode. There are many leaks in replay mode, because exit path is different from normal game play, which cause to skip to free/delete pointers.

[leper]

This sort of duplicates #3138, which removes wmain. That still needs SDL 2.0.4 to be released (or us building a hg version of it).

Replay mode, as every other special-cased mode has issues like this and likely a few others (mod mounting logic in a few places instead of one, init of stuff, ...) but this should best be fixed by using the init/shutdown code paths up to the point we need.

[elexis]

free() is skipped in case of replay mode

Which calls do you mean?

[Itms]

Pushing this to A20, as we're not going to update SDL (nor introduce breaking changes to wmain) now.

[ben]

In 17658:

Updates precompiled win32 SDL libs to 2.0.4 from libsdl.org.
Fixes windows build with SDL 2.0.4, fixes #3138, #3225