Merge branch 'api-8' into api-9

Author: ImMorpheus

.github/CONTRIBUTING.md

@@ -2,4 +2,4 @@
 
 We will always have a need for developers to help us improve Sponge. There is no such thing as a perfect project and things can always be improved. If you are a developer and are interested in helping then please do not hesitate. Just make sure you follow our guidelines.
 
-Please check our [Contribution Guidelines in the Sponge Documentation](https://docs.spongepowered.org/en/contributing/guidelines.html) for more information.
+Please check our [Contribution Guidelines in the Sponge Documentation](https://docs.spongepowered.org/stable/en/contributing/guidelines.html) for more information.

README.md

@@ -6,11 +6,9 @@ A mature Minecraft plugin API (not including an implementation), licensed under
 * [Source]
 * [Issues]
 * [Documentation]
-* [Community Discord]
-* [Community IRC]: [#sponge on irc.esper.net]
-* [Development IRC]: [#spongedev on irc.esper.net]
 * [Preparing for Development]
 * [Javadocs]
+* [Discord] `#plugins`
 
 ## Prerequisites
 * [Java] 8 (JDK 16 recommended for development)
@@ -42,13 +40,6 @@ Are you a talented programmer looking to contribute some code? We'd love the hel
 [Java]: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
 [Source]: https://github.com/SpongePowered/SpongeAPI/
 [MIT License]: https://www.tldrlegal.com/license/mit-license
-[Community Discord]: https://discord.gg/PtaGRAs
-[Community IRC]: https://kiwiirc.com/client/irc.esper.net:+6697/?nick=sponge|?#sponge
-[Development IRC]: https://kiwiirc.com/client/irc.esper.net:+6697/?nick=sponge|?#spongedev
-[Preparing for Development]: https://docs.spongepowered.org/en/preparing/
-[#sponge on irc.esper.net]: irc://irc.esper.net/#sponge
-[Development Chat]: https://webchat.esper.net/?channels=spongedev
-[#spongedev on irc.esper.net]: irc://irc.esper.net/#spongedev
-[Preparing for Development]: https://docs.spongepowered.org/en/preparing/
+[Discord]: https://discord.gg/PtaGRAs
+[Preparing for Development]: https://docs.spongepowered.org/stable/en/preparing/
 [Javadocs]: https://jd.spongepowered.org
-[stable-7]: https://github.com/SpongePowered/SpongeAPI/tree/stable-7

src/main/java/org/spongepowered/api/registry/Registry.java

@@ -37,7 +37,7 @@
  * @param <T> The type
  */
 @DoNotStore
-public interface Registry<T> extends Iterable<RegistryEntry<T>> {
+public interface Registry<T> {
 
     /**
      * Gets the {@link ResourceKey key} identifying this registry.