Router: Prep for RI sig types:

- New router.sigType config
 - Generate / regenerate router keys based on config
 - New router.keys2 file format for sig types and padding
 - Fix RouterInfo.readBytes() signature verification with sig types
 - Catch unset padding in KeysAndCert.writeBytes()
 - Catch key errors in ReadRouterJob
 - Show RI sig type on /netdb in console
 - Move some things from Router to startup classes
 - Startup classes package private
 - Buffer readin of key files
 - Remove configurability of router.info and router.keys file locations

apps/routerconsole/java/src/net/i2p/router/web/NetDbRenderer.java

@@ -415,7 +415,9 @@ public class NetDbRenderer {
             // shouldnt happen
             buf.append("<b>" + _("Published") + ":</b> in ").append(DataHelper.formatDuration2(0-age)).append("???<br>\n");
         }
-        buf.append("<b>" + _("Address(es)") + ":</b> ");
+        buf.append("<b>").append(_("Signing Key")).append(":</b> ")
+           .append(info.getIdentity().getSigningPublicKey().getType().toString());
+        buf.append("<br>\n<b>" + _("Address(es)") + ":</b> ");
         String country = _context.commSystem().getCountry(info.getIdentity().getHash());
         if(country != null) {
             buf.append("<img height=\"11\" width=\"16\" alt=\"").append(country.toUpperCase(Locale.US)).append('\"');