Pass raw QUERY_STRING to parser

Summary:
Fixes issue where double-encoding of $_SERVER occurs when php.ini forces all input to be sanitized

Ex:
filter.default = full_special_chars
filter.default_flags = 36

Fix line length

Test Plan: Encountered issue on clean install when registring new user (phusr not defined for email verification). php.ini on that server contains above filter settings. nginx/php-fpm with recommended settings for that server block from setup guide.

Reviewers: epriestley

Reviewed By: epriestley

CC: aran, epriestley

Differential Revision: https://secure.phabricator.com/D6672