Prepare for 6.0-1.13.0 release.

CHANGELOG.md

-# Changes in version 6.0-1.13.0 - 2018-04-??
+# Changes in version 6.0-1.13.0 - 2018-04-17
 
  * Medium changes
    - Change the "exit_addresses" field to not exclude current OR

build.xml

@@ -8,9 +8,9 @@
 
   <property name="javadoc-title" value="Onionoo API Documentation"/>
   <property name="implementation-title" value="Onionoo" />
-  <property name="onionoo.protocol.version" value="5.2"/>
+  <property name="onionoo.protocol.version" value="6.0"/>
   <property name="release.version"
-            value="${onionoo.protocol.version}-1.12.0-dev"/>
+            value="${onionoo.protocol.version}-1.13.0"/>
   <property name="metricslibversion" value="2.2.0"/>
   <property name="jetty.version" value="-9.2.21.v20170120" />
   <property name="warfile"

src/main/java/org/torproject/onionoo/server/ResponseBuilder.java

@@ -122,9 +122,9 @@ public class ResponseBuilder {
     return this.charsWritten;
   }
 
-  private static final String PROTOCOL_VERSION = "5.2";
+  private static final String PROTOCOL_VERSION = "6.0";
 
-  private static final String NEXT_MAJOR_VERSION_SCHEDULED = "2018-04-14";
+  private static final String NEXT_MAJOR_VERSION_SCHEDULED = null;
 
   private void writeRelays(List<SummaryDocument> relays, PrintWriter pw) {
     this.write(pw, "{\"version\":\"%s\",\n", PROTOCOL_VERSION);