make default projection retain pixel coordinates by default when size changes (answers issue of Marcus Leinweber)
make default projection retain pixel coordinates by default when size changes (answers issue of Marcus Leinweber)

git-svn-id: 033d166fe8e629f6cbcd3c0e2b9ad0cffc79b88b@1507 3a63a0ee-37fe-0310-a504-e92b6e0a3ba7

visionegg/visionegg,visionegg/visionegg,visionegg/visionegg,visionegg/visionegg,visionegg/visionegg