Fix javadoc build errors affecting JDK 8

Author: ato

src/main/java/org/archive/format/gzip/GZIPStaticHeader.java

@@ -13,7 +13,7 @@
  * @author Brad
  * 
  * +---+---+---+---+---+---+---+---+---+---+
- * |ID1|ID2|CM |FLG|     MTIME     |XFL|OS | (more-->)
+ * |ID1|ID2|CM |FLG|     MTIME     |XFL|OS | (more-->)
  * +---+---+---+---+---+---+---+---+---+---+
  */
 public class GZIPStaticHeader implements GZIPConstants {

src/main/java/org/archive/io/ReplayCharSequence.java

@@ -59,7 +59,7 @@ public interface ReplayCharSequence extends CharSequence, Closeable {
     public long getDecodeExceptionCount(); 
 
     /**
-     * Return the first coding-exception encountered, if the count > 0. 
+     * Return the first coding-exception encountered, if the count > 0.
      * @return CharacterCodingException
      */
     public CharacterCodingException getCodingException();

src/main/java/org/archive/io/arc/ARCWriter.java

@@ -86,7 +86,7 @@
  * write our own GZIP*Streams, ones that resettable and consious of gzip
  * members.
  *
- * <p>This class will write until we hit >= maxSize.  The check is done at
+ * <p>This class will write until we hit &gt;= maxSize.  The check is done at
  * record boundary.  Records do not span ARC files.  We will then close current
  * file and open another and then continue writing.
  *
@@ -95,9 +95,9 @@
  * <a href="http://www.archive.org/web/researcher/tool_documentation.php">alexa
  * ARC c-tools</a>:
  * <pre>
- * % av_procarc hx20040109230030-0.arc.gz | av_ziparc > \
+ * % av_procarc hx20040109230030-0.arc.gz | av_ziparc &gt; \
  *     /tmp/hx20040109230030-0.dat.gz
- * % av_ripdat /tmp/hx20040109230030-0.dat.gz > /tmp/hx20040109230030-0.cdx
+ * % av_ripdat /tmp/hx20040109230030-0.dat.gz &gt; /tmp/hx20040109230030-0.cdx
  * </pre>
  * Examine the produced cdx file to make sure it makes sense.  Search
  * for 'no-type 0'.  If found, then we're opening a gzip record w/o data to

src/main/java/org/archive/util/DateUtils.java

@@ -557,7 +557,7 @@ private static String doubleToString(double val, int maxFractionDigits, int minF
      * Takes a byte size and formats it for display with 'friendly' units. 
      * <p>
      * This involves converting it to the largest unit 
-     * (of B, KiB, MiB, GiB, TiB) for which the amount will be > 1.
+     * (of B, KiB, MiB, GiB, TiB) for which the amount will be &gt; 1.
      * <p>
      * Additionally, at least 2 significant digits are always displayed. 
      * <p>