Converts html to PDF
====================
Provides a thin wrapper to the wkhtmltopdf binary from http://code.google.com/p/wkhtmltopdf/
REQUIREMENTS
============
Install the binary http://code.google.com/p/wkhtmltopdf/
This may require libfontconfig (on Ububtu: sudo aptitude install libfontconfig)
INSTALLATION
============
Add 'wkhtmltopdf' to INSTALLED_APPS.
By default it will execute the first wkhtmltopdf command found on your PATH.
You can set WKHTMLTOPDF_CMD to a specific execuatable:
e.g.
WKHTMLTOPDF_CMD = '/path/to/my/wkhtmltopdf'