[master] 1. Add changelog. 2. Add cache test data file EXTRA_DISTOF

ChangeLog

+  188.  [bug]		zhang likun
+	Make the rrset trust level ranking algorithm used by
+	isc::cache::MessageEntry::getRRsetTrustLevel() follow RFC2181
+	section 5.4.1.
+	(Trac #595 git)
+
   187.  [bug]		zhang likun
 	Fix the assert error in class isc::cache::RRsetCache by adding the
 	check for empty pointer and test case for it.

src/lib/cache/tests/Makefile.am

@@ -64,3 +64,5 @@ EXTRA_DIST += testdata/message_fromWire3
 EXTRA_DIST += testdata/message_fromWire4
 EXTRA_DIST += testdata/message_fromWire5
 EXTRA_DIST += testdata/message_fromWire6
+EXTRA_DIST += testdata/message_fromWire7
+EXTRA_DIST += testdata/message_fromWire8