Base and auth
Download audio list
Download test file
Download by audio's id
Name file as it's id and save to special folder
Move auth data to universal .json, methods to work with this .json
Fix bug with error report to console when /audio folder exists
Recursive download, caching and mb in console
Fix bug, when update didn't start
Fix bug with bad caching and downloading, remove data.json
Merge branch 'master' of https://github.com/upisfree/download-all-vk-music