Fix power widget dimensions.

The widget was taking 2 units vertically on some devices.
diff --git a/res/xml/appwidget_info.xml b/res/xml/appwidget_info.xml
index 8775bbc..22fb98a 100644
--- a/res/xml/appwidget_info.xml
+++ b/res/xml/appwidget_info.xml
@@ -16,7 +16,7 @@
 
 <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
     android:minWidth="311dip"
-    android:minHeight="80dip"
+    android:minHeight="72dip"
     android:initialLayout="@layout/widget"
     >
 </appwidget-provider>