merge old vs new check into master shipping

Changed DivYieldST from VW to EW

Incorrectly assigned previously

Cosmetic change to sinAlgo.do and delete Y_SinStocks.do which is now …

…obsolete.

Updates to t-stat scatter plot

Merge pull request #36 from OpenSourceAP/Patches

Patches for updated version

Merge pull request #15 from OpenSourceAP/Version1

Major modularization update

Update README.md

Adjustment to EarnIncrease

Initial commit. Replication code.