Add/fix since tags for new API for push certificates

This was missed in change I249869cadb2d55aef016371b9311b8583591b9cf

Change-Id: I19c9d4c04b6aa92b9e04c192dee70775d6985b58
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/transport/GitProtocolConstants.java

@@ -139,7 +139,7 @@ public class GitProtocolConstants {
 	/**
 	 * The client will send a push certificate.
 	 *
-	 * @since 3.7
+	 * @since 4.0
 	 */
 	public static final String OPTION_PUSH_CERT = "push-cert"; //$NON-NLS-1$
 
@@ -182,7 +182,7 @@ public class GitProtocolConstants {
 	/**
 	 * The server allows recording of push certificates.
 	 *
-	 * @since 3.7
+	 * @since 4.0
 	 */
 	public static final String CAPABILITY_PUSH_CERT = "push-cert"; //$NON-NLS-1$
 

org.eclipse.jgit/src/org/eclipse/jgit/transport/PushCertificate.java

@@ -45,6 +45,8 @@ package org.eclipse.jgit.transport;
 
 /**
  * The required information to verify the push.
+ *
+ * @since 4.0
  */
 public class PushCertificate {
 

org.eclipse.jgit/src/org/eclipse/jgit/transport/PushCertificateParser.java

@@ -54,8 +54,9 @@ import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.transport.BaseReceivePack.ReceiveConfig;
 
 /**
- * @author sbeller
+ * Parser for Push certificates
  *
+ * @since 4.0
  */
 public class PushCertificateParser extends PushCertificate {