Merge pull request #189 from bonkey/stable

Updated project file to Xcode 8 / Swift 2.3

XCode/Swifter.xcodeproj/project.pbxproj

@@ -549,6 +549,7 @@
 				TargetAttributes = {
 					7AE893E61C05127900A29F63 = {
 						CreatedOnToolsVersion = 7.1;
+						LastSwiftMigration = 0800;
 					};
 					7AE893FA1C0512C400A29F63 = {
 						CreatedOnToolsVersion = 7.1;
@@ -1002,6 +1003,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 2.3;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
@@ -1042,6 +1044,7 @@
 				METAL_ENABLE_DEBUG_INFO = NO;
 				ONLY_ACTIVE_ARCH = NO;
 				SDKROOT = macosx;
+				SWIFT_VERSION = 2.3;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 			};