tables.py: add import of Spacer bug fix contributed by Felix Labrecque <felixl@densi.com>
tables.py: add import of Spacer bug fix contributed by Felix Labrecque <felixl@densi.com>

kanarelo/reportlab,Distrotech/reportlab,Distrotech/reportlab,kanarelo/reportlab,Distrotech/reportlab,Distrotech/reportlab,kanarelo/reportlab,kanarelo/reportlab,kanarelo/reportlab,Distrotech/reportlab