Cycle day editor and other confirmation dialogs.

Create dialog to edit "cycle day" when data usage resets.  Also added
dialogs to confirm enabling limit and restricting an application.

Change-Id: I1e08b17fabd1fcfc2f260807a61435d0ff1a8627

src/com/android/settings/widget/DataUsageChartView.java

@@ -127,6 +127,8 @@ public class DataUsageChartView extends ChartView {
         } else {
             mSweepDataWarn.setVisibility(View.INVISIBLE);
         }
+
+        requestLayout();
     }
 
     private OnSweepListener mSweepListener = new OnSweepListener() {
@@ -195,6 +197,7 @@ public class DataUsageChartView extends ChartView {
 
         requestLayout();
         mSeries.generatePath();
+        mSeries.invalidate();
     }
 
     public static class TimeAxis implements ChartAxis {