WIP json cleanup
submodules fuckup
unfuck submodules
json cleanup, continued
Correct return type for value transformers
Now use opendata for most JCDecaux cities

JCDecauxCity uses the official webservice, while CyclocityCity is the old unofficial ws. (Need to do Paris and Lyon as well.)
Switch ParisVelibCity to JCDecauxCity
Switch LyonVelovCity to JCDecauxCity
Remove tracking in debug builds.
Less logging
Fix a bug where the update weren't started when entering a city without zooming.