musikbox 0.17.0

user-facing:

• win32 musikbox now ensures only a single instance is running
• fixed auto-dpi scaling in windows so musikbox displays properly out of the box on high dpi (e.g. 4k) displays
• added the ability to browse and play cached tracks in musikdroid while offline
• fixed a bug that was preventing the transcoder cache from functioning properly

low-level:

• updated to boost 1.64.0
• started converting some musikdroid sources to kotlin
• added missing track_num field to track resources in websocket_remote
• fixed local cache filename generation in musikdroid

note: updated musikdroid from 0.10.0 to 0.10.1 after the initial release, which includes the following changes:

• integrated fabric.io into musikdroid for crash reporting
• added new "empty" and "offline" view states to all screens in musikdroid
• fixed a couple musikdroid crashes in playback-related code