Add missing @since tags

Change-Id: I9754e2124c0fe6ad2dbde5597c3ed10f1c3efef5
Signed-off-by: Lars Vogel <Lars.Vogel@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/api/CherryPickCommand.java

 	 * @param prefix
 	 *            including ":"
 	 * @return {@code this}
+	 * @since 3.1
 	 */
 	public CherryPickCommand setReflogPrefix(final String prefix) {
 		this.reflogPrefix = prefix;

org.eclipse.jgit/src/org/eclipse/jgit/api/StatusCommand.java

 	 * @param path
 	 *            a path is relative to the top level of the repository
 	 * @return {@code this}
+	 * @since 3.1
 	 */
 	public StatusCommand addPath(String path) {
 		if (paths == null)
 	 *
 	 * @return the paths for which the status is shown or <code>null</code> if
 	 *         the complete status for the whole repo is shown.
+	 * @since 3.1
 	 */
 	public List<String> getPaths() {
 		return paths;

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

 		 * advertised.
 		 * <p>
 		 * This may happen, for example, when a custom {@link RefFilter} is set.
+		 *
+		 * @since 3.1
 		 */
 		TIP,
 
 		/**
 		 * Client may ask for any commit reachable from any reference, even if that
 		 * reference wasn't advertised.
+		 *
+		 * @since 3.1
 		 */
 		REACHABLE_COMMIT_TIP,
 
 	 * @param tc
 	 *            configuration controlling transfer options. If null the source
 	 *            repository's settings will be used.
+	 * @since 3.1
 	 */
 	public void setTransferConfig(TransferConfig tc) {
 		this.transferConfig = tc != null ? tc : new TransferConfig(db);