Fixed a bug where new chunks generated were all the same. The reason
was because they were in a for loop, and the overworld, chunk, and
dungeon were all setting their own srand(time(NULL)), which meant that
the seed was the same everytime they were looped through.  This was fixed
by placing the srand(time(NULL)) in the gui_init.  The old ones were not removed,
but commented out, and can be found with grep -r "srand" ./*