20130621_COMMIT(Mainly for the page of Store Details)

Feature or refinement:
1. Implement Store Details and relevant function on each cell
2. Put StoreAnnotation into MapViewController while it's small

Fix following bugs:
1. MapView: map annotation leads to wrong store
2. TabBar: If clicking same tab, it will return to the first page
3. Store Details: if there's no year for the store, there's still a
border square displayed
4. Store Details: table view cannot be scrolled
5. Store Details: section 3 and 1 content will overlay (reused cell is
updated without clear firstly)
6. Store Details: Thumbnails exceed scrollview width
7. Store Details: Info section cell's height is fixed
20130621_COMMIT(Part.2)

1. Add alert view before making phone calls of stores.
2. Implement mail composer function.
3. Open Apple map to access store's address.