Memory leaks about slade

[sirjuddington]

Would you be able to run this again? I think a lot of these should be fixed (eg. the realloc stuff in MemChunk), not sure what is current and what isn't.

[Gaerzi]

Unfortunately, I can't manage to compile SLADE 3 under Linux anymore, so no valgrind. The problem comes from wxWebview, which requires webkitgtk to be available, and it's a package dependency hell to try to get it installed on my old crunchbang.

[eevee]

It still complains quite a bit for me:

==5917== LEAK SUMMARY:
==5917==    definitely lost: 775,123 bytes in 1,839 blocks
==5917==    indirectly lost: 1,916,346 bytes in 21,557 blocks
==5917==      possibly lost: 1,024,392 bytes in 18,382 blocks
==5917==    still reachable: 13,308,285 bytes in 92,028 blocks

But most of the definite/indirect losses are global configuration stuff loaded on startup, so not actually leaks, just left to the OS to clean up.

The indefinite stuff is scattered all over the place; I see some of it in my GTK+ theme (oops), some in sound loading, some with barely any stack whatsoever.