Added 0.7.0 entry

git-svn-id: http://svn.savannah.nongnu.org/svn/rdiff-backup@19 2b77aa54-bcbc-44c9-a7ec-4f6cf2b41109

trunk/rdiff-backup/CHANGELOG

+New in v0.7.0 (2002/03/21)
+--------------------------
+
+Added hardlink support.  This is now the default, but can be turned
+off with --no-hardlinks.
+
+Clarified a bit of the manual.
+
+May have fixed a bug with remote handling of device files.
+
+
 New in v0.6.0 (2002/03/14)
 --------------------------