[UWS] Fix HTTP request for job destruction.

Until now, it was possible to destroy the job by posting ACTION=DELETE
with a URL like below:

    {root-uws}/{job-list}/{job-id}/foo/bar

That is completely wrong. The correct URL for this action must always be:

    {root-uws}/{job-list}/{job-id}

This commit fixes this error in UWSServlet and UWSService.

src/uws/service/UWSServlet.java

@@ -398,16 +398,16 @@ public abstract class UWSServlet extends HttpServlet implements UWS, UWSFactory
 					uwsAction = UWSAction.ADD_JOB;
 					doAddJob(requestUrl, req, resp, user);
 
+				}// DESTROY JOB:
+				else if (requestUrl.hasJobList() && requestUrl.hasJob() && requestUrl.getAttributes().length == 0 && UWSToolBox.hasParameter(UWSJob.PARAM_ACTION, UWSJob.ACTION_DELETE, req, false)){
+					uwsAction = UWSAction.DESTROY_JOB;
+					doDestroyJob(requestUrl, req, resp, user);
+
 				}// SET JOB's UWS STANDARD PARAMETER
 				else if (requestUrl.hasJobList() && requestUrl.hasJob() && requestUrl.getAttributes().length == 1 && requestUrl.getAttributes()[0].toLowerCase().matches(UWSParameters.UWS_RW_PARAMETERS_REGEXP) && UWSToolBox.hasParameter(requestUrl.getAttributes()[0], req, false)){
 					uwsAction = UWSAction.SET_UWS_PARAMETER;
 					doSetUWSParameter(requestUrl, req, resp, user);
 
-				}// DESTROY JOB:
-				else if (requestUrl.hasJobList() && requestUrl.hasJob() && UWSToolBox.hasParameter(UWSJob.PARAM_ACTION, UWSJob.ACTION_DELETE, req, false)){
-					uwsAction = UWSAction.DESTROY_JOB;
-					doDestroyJob(requestUrl, req, resp, user);
-
 				}// SET JOB PARAMETER:
 				else if (requestUrl.hasJobList() && requestUrl.hasJob() && (!requestUrl.hasAttribute() || requestUrl.getAttributes().length == 1 && requestUrl.getAttributes()[0].equalsIgnoreCase(UWSJob.PARAM_PARAMETERS)) && UWSToolBox.getNbParameters(req) > 0){
 					uwsAction = UWSAction.SET_JOB_PARAM;

src/uws/service/actions/DestroyJob.java

@@ -16,7 +16,7 @@ package uws.service.actions;
  * You should have received a copy of the GNU Lesser General Public License
  * along with UWSLibrary.  If not, see <http://www.gnu.org/licenses/>.
  *
- * Copyright 2012-2015 - UDS/Centre de Données astronomiques de Strasbourg (CDS),
+ * Copyright 2012-2017 - UDS/Centre de Données astronomiques de Strasbourg (CDS),
  *                       Astronomisches Rechen Institut (ARI)
  */
 
@@ -43,7 +43,7 @@ import uws.service.log.UWSLog.LogLevel;
  * The response of this action is a redirection to the jobs list.</p>
  *
  * @author Gr&eacute;gory Mantelet (CDS;ARI)
- * @version 4.1 (04/2015)
+ * @version 4.2 (09/2017)
  */
 public class DestroyJob extends UWSAction {
 	private static final long serialVersionUID = 1L;
@@ -71,6 +71,7 @@ public class DestroyJob extends UWSAction {
 	 * <ul>
 	 * 	<li>a job list name is specified in the given UWS URL <i>(<u>note:</u> the existence of the jobs list is not checked)</i>,</li>
 	 * 	<li>a job ID is given in the UWS URL <i>(<u>note:</u> the existence of the job is not checked)</i>,</li>
+	 * 	<li>no job attribute is specified in the URL <i>(i.e. {uws-root}/{jobs}/{job-id})</i>,</li>
 	 * 	<li>the HTTP method is HTTP-DELETE...</li>
 	 * 	<li>...<b>or</b> the HTTP method is HTTP-POST <b>and</b> there is the parameter {@link UWSJob#PARAM_ACTION PARAM_ACTION} (=ACTION) with the value {@link UWSJob#ACTION_DELETE ACTION_DELETE} (=DELETE).</li>
 	 * </ul>
@@ -79,7 +80,7 @@ public class DestroyJob extends UWSAction {
 	 */
 	@Override
 	public boolean match(UWSUrl urlInterpreter, JobOwner user, HttpServletRequest request) throws UWSException{
-		return urlInterpreter.hasJobList() && urlInterpreter.hasJob() && (request.getMethod().equalsIgnoreCase("delete") || (request.getMethod().equalsIgnoreCase("post") && UWSToolBox.hasParameter(UWSJob.PARAM_ACTION, UWSJob.ACTION_DELETE, request, false)));
+		return urlInterpreter.hasJobList() && urlInterpreter.hasJob() && urlInterpreter.getAttributes().length == 0 && (request.getMethod().equalsIgnoreCase("delete") || (request.getMethod().equalsIgnoreCase("post") && UWSToolBox.hasParameter(UWSJob.PARAM_ACTION, UWSJob.ACTION_DELETE, request, false)));
 	}
 
 	/**