Merge branch 'dev' of https://github.com/enviroCar/enviroCar-server into dev
Merge branch 'dev' of https://github.com/matthesrieke/enviroCar-server into dev
add additional metadata to a track
change "acceptedTermsOfUseVersion" to "touVersion".

MongoUser keeps a mapping to the old property for backwards
compatibility. Also User encoder writes both / decoder accepts both. New
users only have "touVersion" in the db.
Merge branch 'dev' of https://github.com/matthesrieke/enviroCar-server into dev
merge recent dev commits
Merge pull request #134 from matthesrieke/feature-track-metadata-properties

Feature track metadata properties
Merge pull request #10 from enviroCar/dev

Dev