Added innermost build.gradle to .gitignore, added an id to the main view in SingleView for easier reference from fragments.

Change-Id: I86976f976d7f1b981d28bfbabeac57cb2a38044a
diff --git a/templates/SingleView/_MODULE_/src/template/res/layout/activity_main.xml b/templates/SingleView/_MODULE_/src/template/res/layout/activity_main.xml
index 3c4777c..bc5a575 100755
--- a/templates/SingleView/_MODULE_/src/template/res/layout/activity_main.xml
+++ b/templates/SingleView/_MODULE_/src/template/res/layout/activity_main.xml
@@ -17,7 +17,8 @@
         xmlns:android="http://schemas.android.com/apk/res/android"
         android:orientation="vertical"
         android:layout_width="fill_parent"
-        android:layout_height="fill_parent">
+        android:layout_height="fill_parent"
+        android:id="@+id/sample_main_layout">
     <TextView android:id="@+id/sample_output"
               style="@style/Widget.SampleMessage"
               android:layout_weight="1"
diff --git a/templates/create/_MODULE_/gitignore b/templates/create/_MODULE_/gitignore
index ce281ed..6eb878d 100644
--- a/templates/create/_MODULE_/gitignore
+++ b/templates/create/_MODULE_/gitignore
@@ -13,3 +13,4 @@
 # limitations under the License.
 src/template/
 src/common/
+build.gradle