Add translation_description to prepare for translation.

Clean up menu items.
- change "Record track" to "Record Track"
- change "Stop recording" to "Stop Recording"
- remove "Delete all tracks", "Please select the track to view",
  "Current track", and "Last segment".
- move "Elevation" to the stat label section.

MyTracks/res/layout/welcome.xml

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2010 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+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
+limitations under the License.
+-->
+<LinearLayout
+  xmlns:android="http://schemas.android.com/apk/res/android"
+  android:layout_width="fill_parent"
+  android:layout_height="fill_parent"
+  android:orientation="vertical">
+  <WebView
+    android:id="@+id/welcome_web"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:layout_weight="1" />
+  <LinearLayout
+    android:orientation="horizontal"
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:layout_weight="0"
+    android:background="@drawable/list_bar"
+    android:padding="3dip">
+    <Button
+      android:id="@+id/welcome_about"
+      android:layout_width="wrap_content"
+      android:layout_height="48dip"
+      android:layout_gravity="left"
+      android:text="@string/welcome_about"
+      android:textSize="14dip" />
+    <TextView
+      android:layout_width="0dip"
+      android:layout_height="wrap_content"
+      android:layout_weight="1" />
+    <Button
+      android:id="@+id/welcome_read_later"
+      android:layout_width="wrap_content"
+      android:layout_height="48dip"
+      android:layout_gravity="right"
+      android:text="@string/welcome_read_later"
+      android:textSize="14dip" />
+  </LinearLayout>
+</LinearLayout>