Fix doclint issues in j.u.Deque & Queue

These changes are already committed in the jsr166 CVS, this is a request to pull them into jdk8.

Specdiff has been run, and there is nothing surprising.
The doclint issues are specifically around the addition of a caption to the tables, the remaining changes are cleanup, <code> -> {@code ..}, etc.


jdk/src/share/classes/java/util/Deque.java:94: error: no summary or caption for table
 * </table>
   ^
jdk/src/share/classes/java/util/Deque.java:132: error: no summary or caption for table
 * </table>
   ^
jdk/src/share/classes/java/util/Deque.java:158: error: no summary or caption for table
 * </table>
   ^
jdk/src/share/classes/java/util/Queue.java:72: error: no summary or caption for table
 * </table>
   ^

see
  http://mail.openjdk.java.net/pipermail/core-libs-dev/2013-August/019492.html