Minor: Adding SCTR

# THIS STUDY IS A REPLICATION OF STOCKCHARTS TECHNICAL RANKING
#
http://stockcharts.com/school/doku.php?id=chart_school:technical_indicators:sctr

#Long-Term
Indicators (weighting)
#  * Percent above/below 200-day SMA (30%)
#  *
125-Day Rate-of-Change (30%)
#Medium-Term Indicators (weighting)
#  * Percent above/below 50-day SMA
(15%)
#  * 20-day Rate-of-Change (15%)
#Short-Term Indicators (weighting)
#  * 3-day slope of PPO-Histogram
(5%)
#  * 14-day RSI (5%)
Minor: Adding SR to SCTR study