End of file new lines, indentation, and imports (minor)

Author: andrewor14

core/src/main/scala/org/apache/spark/ui/FooTab.scala

@@ -102,4 +102,4 @@ private[spark] object FooTab {
 
     readLine("\n> Started SparkUI with a Foo tab...")
   }
-}
+}

core/src/main/scala/org/apache/spark/ui/exec/IndexPage.scala

@@ -11,7 +11,7 @@
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
+ * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 

streaming/src/main/scala/org/apache/spark/streaming/ui/UIUtils.scala

@@ -18,7 +18,6 @@
 package org.apache.spark.streaming.ui
 
 import scala.xml.Node
-import org.apache.spark.ui.Page
 
 private[spark] object UIUtils {