Fixed some errors, added number of MVPA and vig bouts. 

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

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/accelerometry@23 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Don't fail. 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/accelerometry@24 edb9625f-4e0d-4859-8d74-9fd3b1da38cb