Select an alias when deleting one.

Change-Id: Ida668dcbb396e10c523559a095d829d8ca93ecaa
Fixes-Issue: CLIENT-517
Reviewed-on: http://gerrit.dmdirc.com/3631
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>

src/com/dmdirc/addons/ui_swing/dialogs/aliases/AliasManagerLinker.java

@@ -122,7 +122,16 @@ public class AliasManagerLinker {
 
             @Override
             public void aliasRemoved(final Alias alias) {
+                final int index = commandModel.indexOf(alias);
                 commandModel.remove(alias);
+                if (index >= commandModel.getSize()) {
+                    model.setSelectedAlias(Optional.fromNullable(
+                            commandModel.getElementAt(commandModel.getSize() - 1)));
+                } else if (index == -1 && !commandModel.isEmpty()) {
+                    model.setSelectedAlias(Optional.fromNullable(commandModel.get(0)));
+                } else {
+                    model.setSelectedAlias(Optional.fromNullable(commandModel.get(index)));
+                }
             }
 
             @Override