remove financialCrisisFiles; later restore FinancialCrisisFiles (data not fn)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ecdat@156 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
restore FinancialCrisisFiles.Rd (for data set)

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ecdat@157 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
delete grepNonStandardCharacters;  moved to Ecfun

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/ecdat@158 edb9625f-4e0d-4859-8d74-9fd3b1da38cb