Address Bar in IE7

Using the autocompletion list for the Address combobox.

Highlighting an item in the combined popup menu for the Back and Forwards buttons.

Now includes the navigation buttons and a search box.

Bugs

Unconventional button order:
- Back button.
- Forward button.
- Combined Back/Forward dropdown.
- Address bar combobox.
- Go button.
- Stop button.
Stop button is always enabled, even when nothing is running.