Added chartEfront.R and bootEfronts.R.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/mpo@20 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Dropped "Code" in function names Code bootEfronts.R and Code chart.Efront.R.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/mpo@21 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
git-svn-id: svn://svn.r-forge.r-project.org/svnroot/mpo@22 edb9625f-4e0d-4859-8d74-9fd3b1da38cb