Add a "Coming soon" section for the Change Journal

Adding this because users were asking about the history feature. While
the history is maintained, there's currently no GUI to explore it, so
I've added this stub to make it more obvious that it's not there yet.

app/src/main/res/drawable/ic_journal.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="1792"
+    android:viewportHeight="1792">
+
+    <path
+        android:fillColor="#fff"
+        android:pathData="M1703 478q40 57 18 129l-275 906q-19 64-76.5 107.5t-122.5 43.5h-923q-77
+0-148.5-53.5t-99.5-131.5q-24-67-2-127 0-4 3-27t4-37q1-8-3-21.5t-3-19.5q2-11
+8-21t16.5-23.5 16.5-23.5q23-38 45-91.5t30-91.5q3-10 .5-30t-.5-28q3-11
+17-28t17-23q21-36 42-92t25-90q1-9-2.5-32t.5-28q4-13 22-30.5t22-22.5q19-26
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+130l-274 906q-36 119-71.5 153.5t-128.5 34.5h-869q-27 0-38 15-11 16-1 43 24 70
+144 70h923q29 0 56-15.5t35-41.5l300-987q7-22 5-57 38 15 59 43zm-1064 2q-4 13 2
+22.5t20 9.5h608q13 0 25.5-9.5t16.5-22.5l21-64q4-13-2-22.5t-20-9.5h-608q-13
+0-25.5 9.5t-16.5 22.5zm-83 256q-4 13 2 22.5t20 9.5h608q13 0
+25.5-9.5
+
+t16.5-22.5l21-64q4-13-2-22.5t-20-9.5h-608q-13 0-25.5 9.5t-16.5 22.5z" />
+</vector>

app/src/main/res/layout/activity_account.xml

@@ -101,5 +101,53 @@
 
         </android.support.v7.widget.CardView>
 
+        <android.support.v7.widget.CardView
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:cardUseCompatPadding="true"
+            app:cardElevation="8dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical">
+
+                <android.support.v7.widget.Toolbar
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:theme="@style/toolbar_theme"
+                    style="@style/toolbar_style"
+                    app:navigationIcon="@drawable/ic_journal"
+                    app:title="Change Journal"
+                    android:elevation="2dp" tools:ignore="UnusedAttribute"/>
+
+
+                <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                    xmlns:tools="http://schemas.android.com/tools"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:padding="8dp"
+                    android:gravity="center_vertical">
+
+                    <LinearLayout android:layout_width="0dp"
+                        android:layout_weight="1"
+                        android:layout_height="wrap_content"
+                        android:layout_marginLeft="8dp"
+                        android:orientation="vertical">
+
+                        <TextView
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:textAppearance="?android:attr/textAppearanceMedium"
+                            android:text="Coming Soon..."/>
+
+                    </LinearLayout>
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+        </android.support.v7.widget.CardView>
+
     </LinearLayout>
 </ScrollView>