add sql-injection.tex
Merge branch 'master' of https://github.com/coanor/various-docs

Conflicts:
	notes/main.tex
Squashed commit of the following:

commit be8014be7e338de094c8aed4fdc4b608644f52d8
Author: coanor <coanor@gmail.com>
Date:   Fri Feb 7 00:09:45 2014 +0800

    add more python related doc
    add bib