Bug 81768 [Import/Export] Import projects wizard layout improvements
3.1M4 I found two small layout problems with the Import Projects wizard. 1. The Import Projects wizard does not call initializeDialogUnits(), and hence the "Browse..." and select/deselect buttons are not of the appropriate size. 2. The selection buttons create a layout but leave the default margins, and hence do not align correctly with the Browse... button.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/datatransfer/WizardProjectsImportPage.java
}
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
			 */
			public Object getParent(Object element) {
				return null;
			}
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
			 */
			public void dispose() {
			}
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
			 *      java.lang.Object, java.lang.Object)
			 */
			public void inputChanged(Viewer viewer, Object oldInput,
					Object newInput) {
			}
		});
		projectsList.setLabelProvider(new LabelProvider() {
			/*
			 * (non-Javadoc)
			 *