lineplots.py: added SimpleTimeSeriesPlot
lineplots.py: added SimpleTimeSeriesPlot

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