Merge branch 'master' into tool-for-adding-a-track
minimal create track
return _id of added entry
more specs
refactor
refactor
more refactoring
handle omitted _id properties
more specs
return a new array, not a reference to the existing one
titles is required for createTrack()
check rv
titles must be an array
discard fields other than _id and titles for tracks
_id properties must be strings
titles must be strings
Merge pull request #63 from Trott/tool-for-adding-a-track

underlying library for cli tool to add a track