data update (minor)
add option --single-check to check_berlin_plz
check_str_plz: documentation for .strassen.tmp vs. strassen
data update (problems detected by running "check_str_plz -checkcoords")
data update (mainly minor coordinate corrections in Berlin.coords.data)
check_str_plz: new option -checkcoordslimit
new check .check_strassen3 (using check_str_plz -checkcoords)
teaser for windows phone app
data update