trunk: update help texts.

INSTALL

-Reference Policy has a requirement of checkpolicy 1.28.  Red Hat 
-Enterprise Linux 4 and Fedora Core 4 RPMs are available on
-the Reference Policy download page at http://serefpolicy.sf.net,
+Reference Policy has a requirement of checkpolicy 1.33.1 and
+libsepol-1.16.2.  Red Hat Enterprise Linux 4 and Fedora Core 4 RPMs
+are available on the CLIP download page at http://oss.tresys.com,
 and can be installed thusly:
 
 Red Hat Enterprise Linux 4:

README

@@ -84,6 +84,7 @@ restorelabels		Relabel the filesystem and report each file that is
 2) Reference Policy Build Options (build.conf)
 
 TYPE			String.  Available options are standard, mls, and mcs.
+			For a type enforcement only system, set standard.
 			This optionally enables multi-level security (MLS) or
 			multi-category security (MCS) features.  This option
 			controls enable_mls, and enable_mcs policy blocks.
@@ -109,14 +110,24 @@ DIRECT_INITRC		Boolean.  If set, sysadm will be allowed to directly
 			This option controls direct_sysadm_daemon policy
 			blocks.
 
-POLY			Boolean.  If set, policy for polyinstantiated
-			directories will be enabled.  This option controls
-			enable_polyinstantiation policy blocks.
-
 OUTPUT_POLICY		Integer.  Set the version of the policy created when
 			building a monolithic policy.  This option has no effect
 			on modular policy.
 
+UNK_PERMS		String.  Set the kernel behavior for handling of
+			permissions defined in the kernel but missing from the
+			policy.  The permissions can either be allowed, denied,
+			or the policy loading can be rejected.
+
+MLS_SENS		Integer.  Set the number of sensitivities in the MLS
+			policy.  Ignored on standard and MCS policies.
+
+MLS_CATS		Integer.  Set the number of categories in the MLS
+			policy.  Ignored on standard and MCS policies.
+
+MCS_CATS		Integer.  Set the number of categories in the MCS
+			policy.  Ignored on standard and MLS policies.
+
 QUIET			Boolean.  If set, the build system will only display
 			status messages and error messages.  This option has no
 			effect on policy.