#7 Removing directories to search in

[Henry Wong]

Problem:
I have found a situation where removing a location will remove other directories as well.

Steps to reproduce the problem:
- Start ClassFinder
- Select Scan->Scan Directories
- Click the "Add Location" button. The dialog box to
select a directory to search in will appear. Choose
a directory e.g., C:\temp\dir1
You will see your selected directory under the
panel named 'Alternate Locations'
- Click the "Add Location" button to add a second
directory. e.g., C:\temp\dir2
- Now in the 'Alternate Locations' panel, unselect the
first directory i.e., C:\temp\dir1 in my example.
- Notice that the 2nd directory is also removed.