Fix an issue in the maven-javadoc-plugin configuration.
diff --git a/pom.xml b/pom.xml
index 2cf2815..7d29183 100644
--- a/pom.xml
+++ b/pom.xml
@@ -70,7 +70,10 @@
                              of changes between releases (to avoid mass changes when committing the site for a new release) -->
                         <windowtitle>${} API</windowtitle>
-                        <bottom>Copyright © {organizationName}. All Rights Reserved.</bottom>
+                        <!-- Use entity references here to avoid charset encoding issues (the string is passed as
+                             a command line argument to the javadoc util and it's tricky to get charset encoding
+                             right in this case). -->
+                        <bottom><![CDATA[Copyright &copy; {organizationName}. All Rights Reserved.]]></bottom>
                         <!-- doctitle only appears in the summary and we should include the version there -->
                         <doctitle>${} ${project.version} API</doctitle>