title: android:imeOptions="actionNext" does not work without specifying android:inputType
body: <p>Code: </p>
  
  <pre><code>&lt;AutoCompleteTextView
                  android:id="@+id/txtUsername"
                  android:layout_width="fill_parent"
                  android:layout_height="wrap_content"
                  android:completionThreshold="1"
                  android:hint="@string/prompt_uname"
                  android:inputType="text"
                  android:imeOptions="actionNext"
                  android:maxLines="1"
                  android:popupBackground="#aaaaaa"
                  android:textSize="@dimen/login_page_text_size" /&gt;
  </code></pre>
  
  <p>in above code when i don't specify android:inputType="text" "Next Button" Does not appear on the keyboard
  Android OS: 4.0.1</p>