GDPFind Look-in control changes without user input

[Curtis Hovey]

When a file is opened, the "Look in" control is updated with the file path and changes the active text/index. The user might not see it happen when searching and opening the found files; the next search will be in a different location :( This is very frustrating with working with a bzr branch because opening a file always set the path the bzr root...a path that is already registered after the first file is opened.