Added '/v2' to the disallowed paths list that '/robots.txt' returns; removed some comments.

Author: IgorRodchenkov

src/main/java/cpath/web/BasicController.java

@@ -61,7 +61,6 @@ final void errorResponse(ServiceQuery args,
                                      HttpServletRequest request,
                                      HttpServletResponse response)
   {
-    // TODO: switch to using @RestControllerAdvice and @ExceptionHandler
     try {
       //log/track using a shorter message
       audit(request, args, null, error);

src/main/java/cpath/web/GlobalControllerAdvice.java

@@ -5,8 +5,6 @@
 import cpath.service.api.OutputFormat;
 import cpath.service.metadata.Datasource;
 import cpath.web.args.binding.*;
-import org.biopax.paxtools.model.BioPAXElement;
-import org.biopax.paxtools.pattern.miner.SIFEnum;
 import org.biopax.paxtools.pattern.miner.SIFType;
 import org.biopax.paxtools.query.algorithm.Direction;
 import org.biopax.paxtools.query.algorithm.LimitType;
@@ -43,6 +41,5 @@ public void registerCustomEditors(WebDataBinder binder, WebRequest request) {
     binder.registerCustomEditor(GraphType.class, new GraphTypeEditor());
     binder.registerCustomEditor(LimitType.class, new GraphQueryLimitEditor());
     binder.registerCustomEditor(SIFType.class, new SIFTypeEditor()); //also works for the SIFEnum subclass
-//    binder.registerCustomEditor(SIFEnum.class, new SIFTypeEditor());
   }
 }

src/main/java/cpath/web/PagesController.java

@@ -69,6 +69,7 @@ String robots() {
     // deny robots access to logs, web services and data files,
     // but allow - to web page resources (css, js, images)
     return "User-agent: *\n" +
+      "Disallow: /v2\n" +
       "Disallow: /fetch\n" +
       "Disallow: /search\n" +
       "Disallow: /graph\n" +