Revert "Revert "main.tex: use \thu@setup@pdfinfo""

This reverts commit 22cef8747ed4a79a7ab739403f27af32b0a9cca1.
Revert "added DOS bat for making main.pdf"

This reverts commit 8cd115669b31ded46b035083d6856bc705102cba.
Revert "added LICENSE and batch file for making main.pdf"

This reverts commit b01d7fb3746b2bd74be7a1b697a5aa9773fc02ca.