Bug 1624196 - Hide obsolete news items from the SeaMonkey home page. r=IanN

src/news.en.xml

@@ -119,7 +119,7 @@ development. We are still committed and hope you are too.
 </p>]]>
     </content>
   </entry>
-  <entry id="2019-09-04" showfront="true">
+  <entry id="2019-09-04" showfront="false">
     <headline>SeaMonkey 2.49.5 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -204,7 +204,7 @@ to see the full announcement.
 </p>]]>
     </content>
   </entry>
-  <entry id="2019-02-14" showfront="true">
+  <entry id="2019-02-14" showfront="false">
     <headline>Today is "I love Free Software Day"</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -214,7 +214,7 @@ progress we are making in our
 </p>]]>
     </content>
   </entry>
-  <entry id="2018-07-27" showfront="true">
+  <entry id="2018-07-27" showfront="false">
     <headline>SeaMonkey 2.49.4 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -241,7 +241,7 @@ visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
     </content>
   </entry>
 
-  <entry id="2018-05-04" showfront="true">
+  <entry id="2018-05-04" showfront="false">
     <headline>SeaMonkey 2.49.3 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -268,7 +268,7 @@ visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
     </content>
   </entry>
 
-  <entry id="2018-02-15" showfront="true">
+  <entry id="2018-02-15" showfront="false">
     <headline>SeaMonkey 2.49.2 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -295,7 +295,7 @@ visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
     </content>
   </entry>
 
-  <entry id="2017-11-06" showfront="true">
+  <entry id="2017-11-06" showfront="false">
     <headline>SeaMonkey 2.49.1 download problem solved</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -307,7 +307,7 @@ installer from <a href="http://www.seamonkey-project.org/releases/">here</a>.
     </content>
   </entry>
 
-  <entry id="2017-11-04" showfront="true">
+  <entry id="2017-11-04" showfront="false">
     <headline>SeaMonkey 2.49.1 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -334,7 +334,7 @@ visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
     </content>
   </entry>
 
-  <entry id="2017-08-13" showfront="true">
+  <entry id="2017-08-13" showfront="false">
     <headline>Download problems with NoScript active</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -352,7 +352,7 @@ this download only. The settings are located in the NoScript options under
     </content>
   </entry>
 
-  <entry id="2017-07-31" showfront="true">
+  <entry id="2017-07-31" showfront="false">
     <headline>SeaMonkey 2.48 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -383,7 +383,7 @@ visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
     </content>
   </entry>
 
-  <entry id="2017-07-12" showfront="true">
+  <entry id="2017-07-12" showfront="false">
     <headline>Fight for Net Neutrality</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -394,7 +394,7 @@ so even if you are not a US citizen keep an eye open.
     </content>
   </entry>
 
-  <entry id="2017-04-15" showfront="true">
+  <entry id="2017-04-15" showfront="false">
     <headline>SeaMonkey 2.48 Beta 1 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -424,7 +424,7 @@ visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
     </content>
   </entry>
 
-  <entry id="2016-12-22" showfront="true">
+  <entry id="2016-12-22" showfront="false">
     <headline>SeaMonkey 2.46 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>
@@ -449,7 +449,7 @@ visit <a href="http://www.seamonkey-project.org/">www.seamonkey-project.org</a>.
     </content>
   </entry>
 
-  <entry id="2016-03-14" showfront="true">
+  <entry id="2016-03-14" showfront="false">
     <headline>SeaMonkey 2.40 released</headline>
     <content type="html" xml:lang="en">
 <![CDATA[<p>