rd_svc_key.c (krb54_get_service_keyblock): New function which searches

rd_svc_key.c (krb54_get_service_keyblock): New function which searches
	the appropaite krb5 keytab file for the key to be used by the krb4
	library.

rd_req.c (krb_rd_req): If the appropriate key cannot be found in the
	krb4 srvtab file, try calling krb54_get_service_keyblock.

decomp_tkt.c (dcmp_tkt_int):
g_in_tkt.c (krb_mk_in_tkt_preauth):
g_ad_tkt.c (get_ad_tkt):
pkt_clen.c (pkt_clen):
rd_err.c (krb_rd_err):
rd_priv.c (krb_rd_priv):
rd_req.c (krb_rd_req):

rd_safe.c (krb_rd_safe): Use krb4_swab32 and krb4_swab16 instead of
	swap_u_long and swap_u_short.  The new byte swapping routines are
	faster and cleaner.

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@11067 dc483132-0cff-0310-8789-dd5450dbe970