Update release docs

Signed-off-by: Tom Eastep <teastep@shorewall.net>

Shorewall/changelog.txt

@@ -8,6 +8,8 @@ Changes in Shorewall 4.4.20.2
 
 4)  Exclude ipsec traffic from sfilter.
 
+5)  Fix an interesting defect.
+
 Changes in Shorewall 4.4.20.1
 
 1)  Corrected FSF address.

Shorewall/known_problems.txt

@@ -17,3 +17,23 @@
     The error occurs when explicit interface numbers are assigned in
     /etc/shorewall/tcdevices and the default HTB queuing discipline is
     used.
+
+3)  The 'sfilter' interface option introduced in 4.4.20 is not applied
+    to traffic addressed to the firewall itself.
+
+4)  IPSEC traffic is incorrectly included in the rules generated by
+    sfiltering.
+
+5)  Shorewall 4.4.20 can, under some circumstances, fail during
+    iptables-restore with a message such as the following:
+
+    iptables-restore v1.4.10: Couldn't load target
+    `dsl0_fwd':/usr/lib/xtables/libipt_dsl0_fwd.so: cannot open shared object
+    file: No such file or directory
+
+    Error occurred at line: 113
+    Try `iptables-restore -h' or 'iptables-restore --help' for more
+    information.
+
+    ERROR: iptables-restore Failed. Input is in
+    	   /var/lib/shorewall/.iptables-restore-input

Shorewall/releasenotes.txt

@@ -30,6 +30,20 @@ VI.   PROBLEMS CORRECTED AND NEW FEATURES IN PRIOR RELEASES
 
 4)  IPSEC traffic is now (correctly) excluded from sfilter.
 
+5)  Shorewall 4.4.20 could, under some circumstances, fail during
+    iptables-restore with a message such as the following:
+
+    iptables-restore v1.4.10: Couldn't load target
+    `dsl0_fwd':/usr/lib/xtables/libipt_dsl0_fwd.so: cannot open shared object
+    file: No such file or directory
+
+    Error occurred at line: 113
+    Try `iptables-restore -h' or 'iptables-restore --help' for more
+    information.
+
+    ERROR: iptables-restore Failed. Input is in
+    	   /var/lib/shorewall/.iptables-restore-input
+
 4.4.20.1
 
 1)  The address of the Free Software Foundation has been corrected in