Support Swift 2.3 and Xcode 8

Author: ikesyo

ReactiveTask.xcodeproj/project.pbxproj

@@ -274,9 +274,11 @@
 				TargetAttributes = {
 					D0BFEA571A2D1E5E00E23194 = {
 						CreatedOnToolsVersion = 6.1.1;
+						LastSwiftMigration = 0800;
 					};
 					D0BFEA621A2D1E5E00E23194 = {
 						CreatedOnToolsVersion = 6.1.1;
+						LastSwiftMigration = 0800;
 					};
 				};
 			};
@@ -354,6 +356,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
+				SWIFT_VERSION = 2.3;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -367,6 +370,7 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				SDKROOT = macosx;
+				SWIFT_VERSION = 2.3;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -434,6 +438,7 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				SDKROOT = macosx;
+				SWIFT_VERSION = 2.3;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};
@@ -474,6 +479,7 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				SDKROOT = macosx;
+				SWIFT_VERSION = 2.3;
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
 			};