Removing bad test files and adding improved test files. Specifically testing output of PortfolioAnalytics with output of solver (e.g. PortfolioAnalytics using ROI.plugin.glpk against using Rglpk directly)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/returnanalytics@3374 edb9625f-4e0d-4859-8d74-9fd3b1da38cb