properly document the current level of support provided for 7z

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/compress/trunk@1527276 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index f7d7a49..540222f 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -51,7 +51,8 @@
       </action>
       <action type="add" date="2013-05-07" issue="COMPRESS-54"
               due-to="Damjan Jovanovic">
-        Added support for 7z archives.
+        Added support for 7z archives.  Most compression algorithms
+        can be read, but only uncompressed archives can be written.
       </action>
       <action type="add" date="2013-05-19" issue="COMPRESS-226"
               due-to="Damjan Jovanovic">
@@ -102,6 +103,9 @@
         The CPIO streams now support an encoding parameter that can be
         used to specify the encoding of file names.
       </action>
+      <action type="fix" date="2013-09-22" issue="COMPRESS-111">
+        Read-only support for LZMA standalone compression has been added.
+      </action>
     </release>
     <release version="1.5" date="2013-03-14"
              description="Release 1.5">