tweak text-dy so tall names are appearing
fixes #870, fixes #959
script used to find bad text-dy is available at https://gist.github.com/mkoniecz/9451a41ec0ae38b23b54
the proper way to test it is using mapnik-legendary, but it depends on currently broken Ruby-Mapnik
add standard text-wrap-width
Merge pull request #1093 from mkoniecz/ce

refactor and fix amenity-points