Update tvOS target to Swift 5

Author: sxg

ForecastIO.xcodeproj/project.pbxproj

@@ -618,11 +618,11 @@
 						ProvisioningStyle = Automatic;
 					};
 					D4A4807D1C507D730053EB05 = {
-						LastSwiftMigration = 1020;
+						LastSwiftMigration = 1030;
 					};
 					D4DE2AC91C513EA00063A7CA = {
 						DevelopmentTeam = 76333YNXLE;
-						LastSwiftMigration = 1020;
+						LastSwiftMigration = 1030;
 						ProvisioningStyle = Manual;
 					};
 				};
@@ -1566,7 +1566,7 @@
 				SKIP_INSTALL = YES;
 				SUPPORTED_PLATFORMS = "appletvsimulator appletvos";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -1602,7 +1602,7 @@
 				SKIP_INSTALL = YES;
 				SUPPORTED_PLATFORMS = "appletvsimulator appletvos";
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -1634,7 +1634,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = appletvos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1662,7 +1662,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = appletvos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};