create ~/.bbbike/gps_uploads directory with 0700 permission

This is consistent with creation of the parent directory ~/.bbbike,
which is also done with 0700.
set_coords_str: accept also "fz" tag if fragezeichen is added to the net

This fixes the misbehavior in BBBikeVia's "set new via point" (and
probably elsewhere) when clicking on fragezeichen lines under a route.
data update (mainly Hoenow and Hellersdorf)
data update (minor)
data update (mainly completion of Hoenow)
fragezeichen: use add_fragezeichen directives from bbbike-temp-blockings.pl

Now .create_fragezeichen target was extended to add also
"#: add_fragezeichen" directives from bbbike-temp-blockings.pl (via
the optimized bbd file).
* data update
data update (minor)
LogTracker, setup_new_online_tracking: die into dialog

If e.g. Net::OpenSSH is missing, then now there's an error dialog
instead of just an error message on the console.
LogTracker: reorganization of menu

The old tracking methods are now "hidden" in a sub-menu. The new
tracking method (using inotify + coordssessions) is now on top of the
menu.
LogTracker replay_accesslog fix: use uri_unescape
minor code simplification (street name experiment)
draw_street_numbers: use smaller font for larger labels

"101n" used to overflow the "bundesstrasse_table" image. Now
a smaller font is used, which now fits for a standard Vera
font with standard height. Note that the system is still
fragile, and different fonts with different sizes may still
overflow.
data update (u.a. completion of Mahlow-Waldblick)
call botchecker from bbbike-data.cgi
data update
upload-track: removed debugging warn
bbd.pod: documentation for "off" directive
data update ("off" directive in ampeln-orig)
data update (mainly Kolonie Einigkeit and Anlage Gravenstein)