Add submodule for PDF generation tool

[Issue #4]
Attempt with deck2pdf fails

[Issue #4]

See
https://github.com/celadevra/jobreview-2013/issues/4#issuecomment-31635131
Add standalone option in Makefile
Use more common characters as bullets

I use web fonts instead of local fonts now, for deck2pdf to generate pdf
with correct fonts. But the webfonts have limited fonts, so I changed
them to common ascii chars.
Use dingbat font and "local" webfont

[Issue #2, #4]

The method successfully produce html with correct font and can be
recognized by deck2pdf.