shorten street names

[caver456]

This doesn't refer to the :1:2:3 endings, though those need to be 'shortened' out of existence too. This refers to getting rid of the last word, 'street' or 'boulevard' or 'way' or such. There are some roads that have the same name but different endings, Eskaton Loop vs Eskaton Drive, so in those cases we need to keep an abbreviated version of the ending, to tell them apart, but for unique street names we should ditch the last work altogether.