bumping dependency on testthat from >= 0.2 to >= 0.8 in suggests

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sensr@63 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Removing FIXME about references in dod.Rd

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sensr@64 edb9625f-4e0d-4859-8d74-9fd3b1da38cb