New functions CONF_load_bio() and CONF_load_fp() to load a configuration
file from a bio or fp. Added some more constification to the BN library.
diff --git a/crypto/bn/bn_mpi.c b/crypto/bn/bn_mpi.c
index 5d786d7..80e1dca 100644
--- a/crypto/bn/bn_mpi.c
+++ b/crypto/bn/bn_mpi.c
@@ -60,7 +60,7 @@
 #include "cryptlib.h"
 #include "bn_lcl.h"
 
-int BN_bn2mpi(BIGNUM *a, unsigned char *d)
+int BN_bn2mpi(const BIGNUM *a, unsigned char *d)
 	{
 	int bits;
 	int num=0;