Changes

Summary

Fixed removeReaction() endpoints, use correct endpoint for deleting own (commit: ac5b652) (details)
Added MessageEmbed#isEmpty and fixed MessageAction not allowing to send (commit: 40c760f) (details)

Commit ac5b6525c7e8915d7d9dcbe99a1666953fea375e by Florian Spieß Fixed removeReaction() endpoints, use correct endpoint for deleting own reactions (commit: ac5b652)
	src/main/java/net/dv8tion/jda/core/entities/MessageReaction.java (diff)
	src/main/java/net/dv8tion/jda/core/entities/MessageChannel.java (diff)
	src/main/java/net/dv8tion/jda/core/entities/impl/TextChannelImpl.java (diff)
	src/main/java/net/dv8tion/jda/core/requests/Route.java (diff)
Commit 40c760f0d092b1b06ae0186a58c7234a34bdfe4d by Florian Spieß Added MessageEmbed#isEmpty and fixed MessageAction not allowing to send embeds with just an image set (commit: 40c760f)
	src/main/java/net/dv8tion/jda/core/requests/restaction/MessageAction.java (diff)
	src/main/java/net/dv8tion/jda/core/entities/MessageEmbed.java (diff)
	src/main/java/net/dv8tion/jda/webhook/WebhookMessageBuilder.java (diff)