Changes

Summary

1. Do not retain the audio managers after shutdown (commit: 6fa89e7) (details)

Commit 6fa89e7ce909cf4ae40c18e4eca6a89d3aaac83f by rubendijkstra123 Do not retain the audio managers after shutdown (commit: 6fa89e7)
	src/main/java/net/dv8tion/jda/core/entities/impl/JDAImpl.java (diff)