Change includes in Spreadsheet to be compatible with Qt5.

This change is Qt4/Qt5 neutral.

src/Mod/Spreadsheet/Gui/AppSpreadsheetGui.cpp

@@ -22,7 +22,12 @@
 #include "Workbench.h"
 #include "ViewProviderSpreadsheet.h"
 #include "SpreadsheetView.h"
+
+#if QT_VERSION >= 0x050000
+#include "qrc_Spreadsheet.cpp"
+#else
 #include "qrc_Spreadsheet.cxx"
+#endif
 
 // use a different name to CreateCommand()
 void CreateSpreadsheetCommands(void);

src/Mod/Spreadsheet/Gui/qtcolorpicker.cpp

@@ -44,20 +44,20 @@
 ** 
 ****************************************************************************/
 
-#include <QtGui/QApplication>
-#include <QtGui/QDesktopWidget>
-#include <QtGui/QPainter>
-#include <QtGui/QPushButton>
-#include <QtGui/QColorDialog>
+#include <QApplication>
+#include <QDesktopWidget>
+#include <QPainter>
+#include <QPushButton>
+#include <QColorDialog>
 #include <QtCore/QMap>
-#include <QtGui/QLayout>
-#include <QtGui/QStyle>
-#include <QtGui/QLabel>
-#include <QtGui/QToolTip>
+#include <QLayout>
+#include <QStyle>
+#include <QLabel>
+#include <QToolTip>
 #include <QtGui/QPixmap>
 #include <QtGui/QFocusEvent>
 #include <QtGui/QPaintEvent>
-#include <QtGui/QGridLayout>
+#include <QGridLayout>
 #include <QtGui/QHideEvent>
 #include <QtGui/QKeyEvent>
 #include <QtGui/QShowEvent>

src/Mod/Spreadsheet/Gui/qtcolorpicker.h

@@ -46,11 +46,11 @@
 
 #ifndef QTCOLORPICKER_H
 #define QTCOLORPICKER_H
-#include <QtGui/QPushButton>
+#include <QPushButton>
 #include <QtCore/QString>
 #include <QtGui/QColor>
 
-#include <QtGui/QLabel>
+#include <QLabel>
 #include <QtCore/QEvent>
 #include <QtGui/QFocusEvent>