Street name expansion file should use regex matches not simple replace

[watmildon]

For example, this fixadd: fixAdd: concat("name=", replace(tag("name"), "N ", "North "));

Will incorrectly fixup an all cap street name of "N ACORN ST" to "North ACORNorth ST".

It was faster to get the simple rules set up and I'm review everything but better to patch it than leave a landmine.

[watmildon]

Fixed!