[alreq] Change alt texts for control character images in the character tables

mostafah has just created a new issue for 
https://github.com/w3c/alreq:

== Change alt texts for control character images in the character 
tables ==
Control characters are shown using images in the character tables, but
 the `alt` text of the images is the character itself, which is not 
very useful. Replace that with the code or the name of the character.

See https://github.com/w3c/alreq/issues/66
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Received on Wednesday, 7 September 2016 12:34:31 UTC