Fixing bug where unified column was added more than once.

org.eclipse.rmf.reqif10.pror.edit/src/org/eclipse/rmf/reqif10/pror/util/ConfigurationUtil.java

diff --git a/org.eclipse.rmf.reqif10.pror.edit/src/org/eclipse/rmf/reqif10/pror/util/ConfigurationUtil.java b/org.eclipse.rmf.reqif10.pror.edit/src/org/eclipse/rmf/reqif10/pror/util/ConfigurationUtil.java
index 4911cf1..1f813a0 100644
--- a/org.eclipse.rmf.reqif10.pror.edit/src/org/eclipse/rmf/reqif10/pror/util/ConfigurationUtil.java
+++ b/org.eclipse.rmf.reqif10.pror.edit/src/org/eclipse/rmf/reqif10/pror/util/ConfigurationUtil.java
@@ -323,11 +323,11 @@
 		}

 

 		

-		// Collect all names from the types

+		// Collect all names from the types.  We use a list to maintain order.

 		final List<String> colNames = new ArrayList<String>();

 		for (SpecType type : types) {

 			for (AttributeDefinition ad : type.getSpecAttributes()) {

-				// Duplicates will disappear due to HashSet

+				

 				String colName = ad.getLongName();

 				if (colName != null && !colNames.contains(colName)) {

 					colNames.add(ad.getLongName());

@@ -346,6 +346,7 @@
 				if (unifiedColumn) continue;

 				column = ConfigurationFactory.eINSTANCE.createUnifiedColumn();

 				colName = "Main";

+				unifiedColumn = true;

 			}

 			

 			column.setWidth(100);