Revert "Lead"

This reverts commit 64f026e9e4d0ea0b9877dfce249d6662a4a59860.
Revert "Revert "Lead""

This reverts commit eecfec8c9281e2ec8689278ffa97a43a06ed731a.
Revert "rubber ->pdflatex"

This reverts commit b92a406d229f1671c4a39c675ed79ebf214f6377.