[dasher] VS2010 compile fix: initialisation of a reference requires operator.=

[Patrick Welche <pwelche src gnome org>]

commit c49bce56643cca6bcb7789ba3a6d109413f1abe6
Author: Patrick Welche <prlw1 cam ac uk>
Date:   Mon Feb 11 12:29:35 2013 +0000

    VS2010 compile fix: initialisation of a reference requires operator.=

 Src/DasherCore/Alphabet/AlphIO.cpp |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/Src/DasherCore/Alphabet/AlphIO.cpp b/Src/DasherCore/Alphabet/AlphIO.cpp
index ae96f42..b8e1071 100644
--- a/Src/DasherCore/Alphabet/AlphIO.cpp
+++ b/Src/DasherCore/Alphabet/AlphIO.cpp
@@ -259,9 +259,9 @@ void CAlphIO::XmlStartHandler(const XML_Char *name, const XML_Char **atts) {
       atts += 2;
     }
 
-    SGroupInfo *&prevSibling((m_vGroups.empty() ? InputInfo : m_vGroups.back())->pChild);
+    SGroupInfo *&prevSibling = (m_vGroups.empty() ? InputInfo->pChild : m_vGroups.back()->pChild);
 
-    if (pNewGroup->iColour==-1 && pNewGroup->bVisible) {
+	if (pNewGroup->iColour==-1 && pNewGroup->bVisible) {
       //no colour specified. Try to colour cycle, but make sure we choose
       // a different colour from both its parent and any previous sibling
       SGroupInfo *parent=NULL;