add swapAxisOrder to ogrInfo and readOGR

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rgdal@513 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
tidy

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rgdal@514 edb9625f-4e0d-4859-8d74-9fd3b1da38cb