Remove border from jme fragment

jme3-android-examples/src/main/res/values-w820dp/dimens.xml

@@ -2,5 +2,5 @@
     <!-- Example customization of dimensions originally defined in res/values/dimens.xml
          (such as screen margins) for screens with more than 820dp of available width. This
          would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
-    <dimen name="activity_horizontal_margin">64dp</dimen>
+    <dimen name="activity_horizontal_margin">0dp</dimen>
 </resources>

jme3-android-examples/src/main/res/values/dimens.xml

@@ -1,5 +1,5 @@
 <resources>
     <!-- Default screen margins, per the Android Design guidelines. -->
-    <dimen name="activity_horizontal_margin">16dp</dimen>
-    <dimen name="activity_vertical_margin">16dp</dimen>
+    <dimen name="activity_horizontal_margin">0dp</dimen>
+    <dimen name="activity_vertical_margin">0dp</dimen>
 </resources>