Fix routing menu

[cmomin]

Hi,

I have been trying the new (and cool!) routing feature and I encountered some bugs mostly related to the routing menu on a nokia 8000 4G .

In particular I did the following modifications to the code:

• I removed the maximumAge option in index.js. For some reason this option was making the display of the localization marker failing. Removing it fixed the stuff.
• The timing information included in the geoJSON return by openrouteservice are in seconds instead of milliseconds. I added the corresponding formatting function format_s in module.js and updated the call to the display function in index.js. I also limited the display of the distance to 2 decimals (to avoid weird display that were taking the full text line induced by the floating point precision).
• For some reason, the call to status.windowOpen = "map" in exportGeoJson is making the app freeze on my phone when the function is called from the routing menu. Changing it to the "finder" window instead of the "map" fixed the stuff.
• Independently, I added the feature of displaying the average speed in tracking mode.

Hope it helps.

[strukturart]

I will adopt your changes in the latest version, some bugs should already be fixed in the latest version. Unfortunately I can't easily merge your changes because I'm already a few commits ahead (and I've lost track ;-) )

[strukturart]

@cmomin can you please test whether I have integrated all suggested changes

[cmomin]

I confirm it. Thanks a lot!