removed empty quotes

@@ -19,7 +19,7 @@ casper.start('http://www.bbc.co.uk/', function() {
     nbLinks = this.evaluate(function() {
         return __utils__.findAll('#promo2_carousel_items_items li').length;
     });
-    this.echo("" + nbLinks + " items founds");
+    this.echo(nbLinks + " items founds");
     // hide navigation arrows
     this.hide('.nav_left');
     this.hide('.nav_right');

@@ -36,7 +36,7 @@ var start = function start(link) {
 var addLinks = function addLinks(link) {
     this.then(function() {
         var found = this.evaluate(searchLinks);
-        this.echo("" + found.length + " links found on " + link);
+        this.echo(found.length + " links found on " + link);
         links = links.concat(found);
     });
 };

@@ -10,7 +10,7 @@ casper.start();
 
 casper.each(links, function(self, link) {
     this.thenOpen(link, function() {
-        this.echo("" + (this.getTitle()) + " - " + link);
+        this.echo((this.getTitle()) + " - " + link);
     });
 });
 

@@ -32,7 +32,7 @@ casper.then(function() {
 
 casper.run(function() {
     // display results
-    this.echo("" + links.length + " links found:");
+    this.echo(links.length + " links found:");
     this.echo(" - " + links.join("\n - "));
     this.exit();
 });

@@ -49,7 +49,7 @@ casper.each(terms, function(self, term) {
             term: term,
             score: score
         });
-        self.echo("" + term + ": " + score);
+        self.echo(term + ": " + score);
     });
 });
 

@@ -13,7 +13,7 @@ var suites = [
             this.echo("Page title: " + (this.getTitle()));
         });
         this.then(function() {
-            this.echo("" + (this.evaluate(countLinks)) + " links");
+            this.echo((this.evaluate(countLinks)) + " links");
         });
     }, function() {
         this.echo('Suite 2');
@@ -21,7 +21,7 @@ var suites = [
             this.echo("Page title: " + (this.getTitle()));
         });
         this.then(function() {
-            this.echo("" + (this.evaluate(countLinks)) + " links");
+            this.echo((this.evaluate(countLinks)) + " links");
         });
     }, function() {
         this.echo('Suite 3');
@@ -29,7 +29,7 @@ var suites = [
             this.echo("Page title: " + (this.getTitle()));
         });
         this.then(function() {
-            this.echo("" + (this.evaluate(countLinks)) + " links");
+            this.echo((this.evaluate(countLinks)) + " links");
         });
     }
 ];