Need Gradlle ~2.14

[dagatsoin]

Hi, by default my cordova (6.0.0) uses Gradle 2.2.1 and I don't know why but your plugin does not totally work with this version.
I say totally, because the attribute in the manifest is written but my app crash with this error:

W/dalvikvm: Link of class 'Lorg/xwalk/core/internal/XWalkPresentationHost;' failed
W/System.err: java.lang.NoClassDefFoundError: org/xwalk/core/internal/XWalkPresentationHost
W/System.err:     at java.lang.Runtime.nativeLoad(Native Method)
W/System.err:     at java.lang.Runtime.loadLibrary(Runtime.java:368)
W/System.err:     at java.lang.System.loadLibrary(System.java:535)
W/System.err:     at org.xwalk.core.internal.XWalkViewDelegate.loadXWalkLibrary(XWalkViewDelegate.java:134)
W/System.err:     at java.lang.reflect.Method.invokeNative(Native Method)
W/System.err:     at java.lang.reflect.Method.invoke(Method.java:511)
W/System.err:     at org.xwalk.core.ReflectMethod.invoke(ReflectMethod.java:61)
W/System.err:     at org.xwalk.core.XWalkCoreWrapper.checkCoreArchitecture(XWalkCoreWrapper.java:360)
W/System.err:     at org.xwalk.core.XWalkCoreWrapper.findEmbeddedCore(XWalkCoreWrapper.java:258)
W/System.err:     at org.xwalk.core.XWalkCoreWrapper.attachXWalkCore(XWalkCoreWrapper.java:172)
W/System.err:     at org.xwalk.core.XWalkLibraryLoader$ActivateTask.doInBackground(XWalkLibraryLoader.java:337)
W/System.err:     at org.xwalk.core.XWalkLibraryLoader$ActivateTask.doInBackground(XWalkLibraryLoader.java:317)
W/System.err:     at android.os.AsyncTask$2.call(AsyncTask.java:287)
W/System.err:     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
W/System.err:     at java.util.concurrent.FutureTask.run(FutureTask.java:137)
W/System.err:     at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
W/System.err:     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
W/System.err:     at java.lang.Thread.run(Thread.java:856)
W/System.err: Caused by: java.lang.ClassNotFoundException: org.xwalk.core.internal.XWalkPresentationHost
W/System.err:     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
W/System.err:     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
W/System.err:     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
W/System.err:   ... 19 more

Workarounds:

• keep Gradle 2.2.1 an set the Multidex by hand in the build.gradle, all is fine.
• bump Gradle to 2.14.1 (I don't tested other version, but maybe 2.13 could also work)

Your plugin is very useful for folk who don't want to dive into android studio and build nightmare (eg. Meteor, Ionic, etc...)