replacing "use_old_method" by "raw"

on url_decode and url_encode
private _sanitize function
private _get_post function

Conflicts:
	pi.surgeree.php
using private functions for get and post

Conflicts:
	pi.surgeree.php
adding function for post and get

Since EE already do this, maybe should be good to do it too.
fixing redundant conditional on check_XID
fixing ternary

PHP doesn't like nested ternaries without ()s.
Move new private methods.
parse_file_paths

Really useful when you're grabing data using SQL module.

Conflicts:
	pi.surgeree.php
parse_conditionals parameter on url_encode