Try to fix forge compatibility

Addresses #825

Author: dmulloy2

src/main/java/com/comphenix/protocol/injector/netty/ProtocolInjector.java

@@ -297,9 +297,7 @@ public PacketEvent onPacketSending(Injector injector, Object packet, NetworkMark
 				PacketContainer container = new PacketContainer(PacketRegistry.getPacketType(clazz), packet);
 				return packetQueued(container, injector.getPlayer(), marker);
 			} catch (LinkageError e) {
-				// So far this has been seen when the jar is shared
-				System.err.println("[ProtocolLib] Encountered a LinkageError. Make sure you\'re not using this jar for multiple server instances!");
-				System.err.println("[ProtocolLib] If you\'re getting this error for other reasons, please report it!");
+				System.err.println("[ProtocolLib] Encountered a LinkageError (likely a misbehaving wrapper), please report this!");
 				e.printStackTrace();
 			}
 		}

src/main/java/com/comphenix/protocol/reflect/cloning/BukkitCloner.java

@@ -47,7 +47,7 @@ private static void fromWrapper(Supplier<Class<?>> getClass, Function<Object, Cl
 			if (nmsClass != null) {
 				CLONERS.put(nmsClass, nmsObject -> fromHandle.apply(nmsObject).deepClone().getHandle());
 			}
-		} catch (RuntimeException ignored) { }
+		} catch (Throwable ignored) { }
 	}
 
 	@SuppressWarnings({"unchecked", "rawtypes"})
@@ -57,7 +57,7 @@ private static void fromConverter(Supplier<Class<?>> getClass, EquivalentConvert
 			if (nmsClass != null) {
 				CLONERS.put(nmsClass, nmsObject -> converter.getGeneric(converter.getSpecific(nmsObject)));
 			}
-		} catch (RuntimeException ignored) { }
+		} catch (Throwable ignored) { }
 	}
 
 	private static void fromManual(Supplier<Class<?>> getClass, Function<Object, Object> cloner) {
@@ -66,7 +66,7 @@ private static void fromManual(Supplier<Class<?>> getClass, Function<Object, Obj
 			if (nmsClass != null) {
 				CLONERS.put(nmsClass, cloner);
 			}
-		} catch (RuntimeException ignored) { }
+		} catch (Throwable ignored) { }
 	}
 
 	static {