sanitize without encode special chars

[madmax]

Currently when we santize (using rails strip_tags helper for example) text it encode \r chars. For example

ActionController::Base.helpers.strip_tags("test\r\n\r\ntest") #=> "test
\n
\ntest"

We should pass encode_special_chars: false to Loofah.fragment.text method to avoid it.

Loofah.fragment("test\r\n\r\ntest").text(encode_special_chars: false) #=> "test\r\n\r\ntest"

Having text with encoded \r makes problems with transforming it using for example textile rails helper - it stop produce paragraphs. (Rails use RedCloth for it) example:

RedCloth.new("test&#13;\n&#13;\ntest").to_html #=> "<p>test&#13;<br />\n&#13;<br />\ntest</p>"
RedCloth.new("test\r\n\r\ntest").to_html #=> "<p>test</p>\n<p>test</p>"

By the way sanitize from Rails::Html::WhiteListSanitizer don't encode special chars :)

ActionController::Base.helpers.sanitize("test\r\n\r\ntest") #=> "test\r\n\r\ntest"