Changes

Summary

1. Fixes NPE from uncached users (#2035) (commit: ac3104d) (details)

Commit ac3104d3b0706e3f48c2da1c7094642174b72880 by noreply Fixes NPE from uncached users (#2035) (commit: ac3104d)
	src/main/java/net/dv8tion/jda/internal/entities/EntityBuilder.java (diff)
	src/main/java/net/dv8tion/jda/internal/handle/MessageReactionHandler.java (diff)
	src/main/java/net/dv8tion/jda/internal/entities/PrivateChannelImpl.java (diff)