updating description for dodPwr() and comment in examples in dod_utils.Rd

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sensr@59 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
merging in changes from /sensR/NEWS

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sensr@60 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge'ing in the sensRdod branch and updating various files to pass build and check

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/sensr@61 edb9625f-4e0d-4859-8d74-9fd3b1da38cb