mark the DES magic number arrays const

mark the DES magic number arrays const

	* libsoup/soup-auth-manager-ntlm.c: mark the DES magic number
	arrays const

	* libsoup/soup-date.c (months, days): add an extra "const" to each
	of these declarations, as one "const" is apparently not enough.
	(soup_date_to_time_t): remove redundant copy of days_before array.

	* libsoup/soup-dns.c (soup_dns_init): use g_once_init_enter/leave

	* libsoup/soup-gnutls.c (soup_ssl_supported)
	(soup_gnutls_channel_funcs): Mark these const
	(soup_gnutls_init, init_dh_params): Use g_once_init_enter/leave

	* libsoup/soup-status.c (reason_phrases): mark this const

	* tests/ssl-test.c: Remove the workaround for soup_gnutls_init()
	not being thread-safe, since it is now.

svn path=/trunk/; revision=1080