Tweaks to Seiko post
Stupid fix to prevent breakage in alt attributes

* Sanitizing markup using cheerio's .text() method busts up when the parameter has no markup in it. (jQuery also does this.) So either I detect markup prior to using it, or I force the text into markup before running the method. I chose the latter.
Fixes a link inside of which typogr.js is annoyingly making a false detection (an ordinal thanks to an encoded URI)