Console: Add service true/false to version info

As proposed at http://zzz.i2p/topics/3520

apps/routerconsole/jsp/error500.jsp

@@ -74,6 +74,7 @@
 <b>Processor:</b> <%=net.i2p.util.NativeBigInteger.cpuModel()%> (<%=net.i2p.util.NativeBigInteger.cpuType()%>)<br>
 <b>JBigI status:</b> <%=net.i2p.util.NativeBigInteger.loadStatus()%><br>
 <b>Encoding:</b> <%=System.getProperty("file.encoding")%><br>
-<b>Charset:</b> <%=java.nio.charset.Charset.defaultCharset().name()%></p>
-<p><%=intl._t("Note that system information, log timestamps, and log messages may provide clues to your location; please review everything you include in a bug report.")%></p>
+<b>Charset:</b> <%=java.nio.charset.Charset.defaultCharset().name()%><br>
+<b>Service:</b> <%=net.i2p.util.SystemVersion.isService()%><br>
+</p><p><%=intl._t("Note that system information, log timestamps, and log messages may provide clues to your location; please review everything you include in a bug report.")%></p>
 </div></body></html>

apps/routerconsole/jsp/logs.jsp

@@ -53,6 +53,7 @@
    }
 %><tr><td><b>Encoding:</b></td><td><%=System.getProperty("file.encoding")%></td></tr>
 <tr><td><b>Charset:</b></td><td><%=java.nio.charset.Charset.defaultCharset().name()%></td></tr>
+<tr><td><b>Service:</b></td><td><%=net.i2p.util.SystemVersion.isService()%></td></tr>
 <tr><td><b>Built By:</b></td><td><jsp:getProperty name="logsHelper" property="builtBy" /></tbody></table>
 
 <h3 class="tabletitle"><%=intl._t("Critical Logs")%><%