Update to Swift 4.2

Author: mattprowse

ReactiveTask.xcodeproj/project.pbxproj

@@ -280,11 +280,11 @@
 				TargetAttributes = {
 					D0BFEA571A2D1E5E00E23194 = {
 						CreatedOnToolsVersion = 6.1.1;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 1010;
 					};
 					D0BFEA621A2D1E5E00E23194 = {
 						CreatedOnToolsVersion = 6.1.1;
-						LastSwiftMigration = 0800;
+						LastSwiftMigration = 1010;
 					};
 				};
 			};
@@ -409,6 +409,7 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -422,6 +423,7 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -436,6 +438,7 @@
 				INFOPLIST_FILE = Tests/ReactiveTaskTests/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -450,6 +453,7 @@
 				INFOPLIST_FILE = Tests/ReactiveTaskTests/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
@@ -484,6 +488,7 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -498,6 +503,7 @@
 				INFOPLIST_FILE = Tests/ReactiveTaskTests/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Test;
 		};
@@ -532,6 +538,7 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};
@@ -546,6 +553,7 @@
 				INFOPLIST_FILE = Tests/ReactiveTaskTests/Info.plist;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.carthage.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 4.2;
 			};
 			name = Profile;
 		};