Gets the downloads by versions for a specific package
renamed endpoint and removed second "downloads" array key
Abandoned status metadata

Added the abandoned status to the `toArray` method of packages
so it is attached to the json data also.
Merge remote-tracking branch 'rdohms/abandon-in-json'
Merge remote-tracking branch 'ikwattro/vdl-stats'
Remove code duplication, refs #444
Include abandoned flag in versions and add the suggested package if present, refs #445