new FAQ entries: Mac usage, finding ordination scores

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2384 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
protest prints also m12 (which was returned but not printed)

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2385 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
prepare for editing protests & procrustes: add tests

git-svn-id: svn+ssh://svn.r-forge.r-project.org/svnroot/vegan/pkg/vegan@2386 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Merge branch 'r-forge-svn-local'