New listbase functions: void BLI_insertlinkafter(struct ListBase *listbase, void *vprevlink, void *vnewlink); - corrolary to insertlinkbefore BLI_sortlist(struct ListBase *listbase, int (*cmp)(void *, void *)); - simple in place sorting method. NOT optimized, so use for small lists only. Uses a variant of insertion sort (I was lazy, people should feel free to rewrite).