Function silc_hash_table_rehash
SYNOPSIS
void silc_hash_table_rehash(SilcHashTable ht, uint32 new_size);
DESCRIPTION
Rehashs the hash table. The size of the new hash table is provided
as `new_size'. If the `new_size' is zero then this routine will make
the new table of a suitable size. Note that this operation may be
very slow.