modified call_colnew.c

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bvpsolve@214 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
modified call_colnew

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bvpsolve@215 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
added reference to main help file

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/bvpsolve@216 edb9625f-4e0d-4859-8d74-9fd3b1da38cb