rename news correctly and use common tagging scheme

news/2016/news-20160406-01.fr.xhtml

@@ -64,7 +64,7 @@ Monsieur le Président,</p>
         </sidebar>
 	<tags>
 		<tag>France</tag>
-                <tag content="directive Radio">radioDirective</tag>
+                <tag content="directive Radio">RadioDirective</tag>
                 <tag>fr</tag>
 	</tags>
 </html>

news/2017/news-20171212-01.en.xhtml

@@ -101,9 +101,9 @@ work.</p>
 </body>
 <tags>
   <tag>front-page</tag>
-  <tag content="Radio Lockdown">radiodirective</tag>
-  <tag content="Policy">policy</tag>
-  <tag content="European Commission">europeancommission</tag>
+  <tag content="Radio Lockdown">RadioDirective</tag>
+  <tag content="Policy">Policy</tag>
+  <tag content="European Commission">EuropeanCommission</tag>
 </tags>
 <author id="mehl" />
 </html>