Welcome Editor
Purpose: To test the Welcome editor in Eclipse.  We will start the
workbench after a fresh install, verify the visibility of the Welcome editor,
and then test the format and links.
Setup:
- 
Install Eclipse Platform.
- 
Delete the metadata for org.eclipse.ui.  This will simulate a fresh
install.
Method:
- 
Start the workbench.  Confirm that the default perspective (Resource)
and Welcome editor both appear.
- 
Close the editor and exit the workbench.
- 
Restart the workbench and verify that the Welcome editor does not appear. 
The editor only appears automatically after a fresh install.
- 
Invoke Help > Welcome and verify that the Welcome editor opens.
- 
The Welcome editor contains a number of links. Test each of these links
to ensure that the link invokes an appropriate action.