[TIMOB-16825] iOS 7: ListView - SearchBar disappears on device rotation if there are no text in the SearchBar

*Details:* If you add a SearchBar to a ListView, scroll up on the list until SearchBar (no text) is not visible, rotate device, then the SearchBar will disappear if you scroll back to the top. *Note:* 1. This is *not* a regression as this occurs in both SDK 3.2.2.GA and 3.2.3. 2. This does *not* occur with iOS 6 devices. 3. SearchBar will re-appear if you rotate the device again. 4. If SearchBar disappears and you press on the empty area (see empty.png), then the SearchBar will re-appear again and persists regardless how many times you rotate the device afterwards. *Steps to reproduce:* 1. Create a default Classic app with the app.js attachment and include these orientation in tiapp.xml:

<key>UISupportedInterfaceOrientations~iphone</key>
<array>
    <string>UIInterfaceOrientationPortrait</string>
    <string>UIInterfaceOrientationPortraitUpsideDown</string>
    <string>UIInterfaceOrientationLandscapeLeft</string>
    <string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
    <string>UIInterfaceOrientationPortrait</string>
    <string>UIInterfaceOrientationPortraitUpsideDown</string>
    <string>UIInterfaceOrientationLandscapeLeft</string>
    <string>UIInterfaceOrientationLandscapeRight</string>
</array>

2. Launch app onto device 3. Press on *List w/ Search* tab 4. Scroll up on ListView until SearchBar is not visible 5. Rotate device in any direction 6. Scroll down on ListView until you're at the top *Actual:* SearchBar is missing (see empty.png). *Expected:* SearchBar should not disappear (see expected.png).