Adjust UI layout for photos

MyTracks/res/layout/list_item.xml

@@ -68,12 +68,12 @@ limitations under the License.
         </TableLayout>
         <ImageView
           android:id="@+id/list_item_photo"
-          android:layout_gravity="center"
+          android:adjustViewBounds="true"
           android:layout_height="wrap_content"
           android:layout_marginLeft="8dp"
           android:layout_weight="1"
           android:layout_width="0dp"
-          android:scaleType="centerCrop" />
+          android:scaleType="fitStart" />
       </LinearLayout>
       <TableLayout
         android:layout_height="wrap_content"

MyTracks/res/layout/marker_detail_fragment.xml

@@ -27,10 +27,11 @@ limitations under the License.
       android:layout_width="match_parent"
       android:orientation="vertical" >
       <ImageView
+        android:adjustViewBounds="true"
         android:id="@+id/marker_detail_waypoint_photo"
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
-        android:scaleType="centerInside" />
+        android:scaleType="fitStart" />
       <TextView
         android:id="@+id/marker_detail_waypoint_name"
         style="@style/TextLarge.WithTopMargin" />