Fixed @since tags on new API

Change-Id: I77bc2ec486ffe4c8b864663d103d8cf39c3f35e1
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>

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

 	 *            destination repository for the push.
 	 * @param cfg
 	 *            configuration for signed push.
+	 * @since 4.1
 	 */
 	public PushCertificateParser(Repository into, SignedPushConfig cfg) {
 		if (cfg != null) {

org.eclipse.jgit/src/org/eclipse/jgit/util/IO.java

 	/**
 	 * Read the next line from a reader.
 	 * <p>
-	 * Like {@link java.io.BufferedReader#readLine()}, but only treats {@code \n}
-	 * as end-of-line, and includes the trailing newline.
+	 * Like {@link java.io.BufferedReader#readLine()}, but only treats
+	 * {@code \n} as end-of-line, and includes the trailing newline.
 	 *
 	 * @param in
 	 *            the reader to read from.
 	 *         EOF was reached.
 	 * @throws IOException
 	 *             there was an error reading from the stream.
+	 * @since 4.1
 	 */
 	public static String readLine(Reader in, int sizeHint) throws IOException {
 		if (in.markSupported()) {