[Sphinx Extension] Include PDF build from Sphinx LaTeX

[x0rw]

-- This is experimental at the moment --
to generate PDFs from .rst files through Sphinx there are two approaches

• First rst2pdf, it's more convinient but your control is very limited and often require direct modification to .rst files
• Second approach is the beloved LaTex, for fine-grained control, which i'm using atm.
  the issue with customising the pdf through sphinx is the ambiguity of documentation, learning curve,
  the documentation itself is quite extensive, they really abused the word 'documentation'.

Current Issues

• Bad format.

Prerequisite

• A LaTeX Distribution(quite large)

Usage:

./make.py --output pdf