Log Message:
Updated ruby-nokogiri to 1.7.0.1.

# 1.7.0.1 / 2017-01-04

## Bugs

* Fix OpenBSD support. (#1569) (related to #1543)

# 1.7.0 / 2016-12-26

## Features

* Remove deprecation warnings in Ruby 2.4.0 (#1545) (Thanks, @matthewd!)
* Support egcc compiler on OpenBSD (#1543) (Thanks, @frenkel and @knu!)

## Backwards incompatibilities.

This release ends support for:

* Ruby 1.9.2, for which official support ended on 2014-07-31
* Ruby 1.9.3, for which official support ended on 2015-02-23
* Ruby 2.0.0, for which official support ended on 2016-02-24
* MacRuby, which hasn't been actively supported since 2015-01-13 (see \ 
https://github.com/MacRuby/MacRuby/commit/f76b9d6e99c18236db617e8aceb12c27d593a483)