grepstrassen: new option -ignorelocaldirectives
data update (ignore directives from routing_helper-orig)
data update (next_check_id directives)
bbbike_cgi_clean_expired_cache: User-Agent string

Now "BBBike-Tools" is added to the default libwww-perl UA string.
data update (mainly new streets in Adlershof)
GPS::GpsmanData::SportsTracker: srt:trackaccuracy

A global value which sets accuracy for the whole track.
data update (mainly updates in Lichtenberg)
Merge remote branch 'eserte/master' into world
POSIX::tmpnam -> File::Temp
bbbike-data/snapshot.cgi: exit gracefully on SIGTERM

A closed client connections seems to cause a SIGTERM to the cgi. Make
sure that temporary files are cleaned up in this case (this may make a
crontab entry unnecessary).

Also loop over the temporary .zip file contents instead of slurping
everything in.
BBBikeTest: zip_ok
test bbbike-data.cgi and bbbike-snapshot.cgi
run cgi-download.t test while deployment
data update (u.a. Friedrichsbruecke, Schiffahrtsufer, Platz der Stadt Hof...)
wwwdata.t: protect from clock skew
deploy also kml21.xsd for less noise in test suite
data update (minor, mainly temporary blockings)
Merge remote branch 'eserte/master' into world

Conflicts:
	t/wwwdata.t
skip bbbike.de tests