Change argument parsing
Implemented a new argument parsing module to change the basic syntax over to something like:
$ mdpdf README.md
$ mdpdf README.md --style md-styles.css --debug
$ mdpdf README.md README-Output.pdf
Implemented a new argument parsing module to change the basic syntax over to something like:
$ mdpdf README.md
$ mdpdf README.md --style md-styles.css --debug
$ mdpdf README.md README-Output.pdf