Switch to another xml2json module #1

Now using https://github.com/buglabs/node-xml2json
Converted app.vertrektijden to new xml2json #1
Load `until` for isArray
Converted app.reisadvies to new xml2json module #1
Config: switched to another xml2json #1
Don't replace special chars
Converted app.stations to new xml2json module #1
Converted app.storingen to new xml2json module #1
Fixed app.reisadvies, not all items have `Spoor`
Now app.vertrektijden is more consistent with other methods
Readme: converted examples to new xml2json output
Config: version 1.1.0 #1