CB-12524: Workaround for obsolete gradle on integration servers

.travis.yml

@@ -5,6 +5,7 @@ jdk:
 before_install:
     - nvm install 6
     - node --version
+    - gradle --version
 install:
     - npm install
     - npm install -g codecov

bin/templates/cordova/lib/builders/GradleBuilder.js

@@ -71,10 +71,11 @@ GradleBuilder.prototype.getArgs = function(cmd, opts) {
 
 GradleBuilder.prototype.runGradleWrapper = function(gradle_cmd) {
     var gradlePath = path.join(this.root, 'gradlew');
+    var wrapperGradle = path.join(this.root, 'wrapper.gradle');
     if(fs.existsSync(gradlePath)) {
       //Literally do nothing, for some reason this works, while !fs.existsSync didn't on Windows
     } else {
-      return spawn(gradle_cmd, ['-p', this.root, 'wrapper'], {stdio: 'inherit'});
+      return spawn(gradle_cmd, ['-p', this.root, 'wrapper', '-b', wrapperGradle], {stdio: 'inherit'});
     }
 };
 

wrapper.gradle

@@ -0,0 +1 @@
+//This file is intentionally just a comment