v3 map, new fullscreen map
added hack to disable clickable POIs in google maps
* put javascript in front of html-code to please internet explorer (hope this helps)
* fixed loading of previous map type
* added function to center on home coordinates
* removed "street view" mode
* fixed selection of search box
disable cache name linewrap in new map popups
readded and fixed #4781: new cache size nano (commit b300630 got lost)

compatibility:
- is supported by new OKAPI rev. 495
- Ocprop compatibility is being checked
- is returned as "other" size in XML interface size field, and as "nano" in new size2 field
- is returned as Micro in GPX files
changed nano size XML implementation

and implemented clean XML versioning for new features
removed old 'OCAPI' experimental code
Merge branch 'new-map' into next
Merge branch '4781-nano' into next