Update deployment target from 10.11 to 10.12

ShadowsocksX-NG.xcodeproj/project.pbxproj

@@ -959,7 +959,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
@@ -1010,7 +1010,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
@@ -1038,7 +1038,7 @@
 					"$(PROJECT_DIR)/ShadowsocksX-NG",
 					"$(PROJECT_DIR)/ShadowsocksX-NG/simple-obfs",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.qiuyuzhou.ShadowsocksX-NG";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "ShadowsocksX-NG/ShadowsocksX-NG-Bridging-Header.h";
@@ -1069,7 +1069,7 @@
 					"$(PROJECT_DIR)/ShadowsocksX-NG",
 					"$(PROJECT_DIR)/ShadowsocksX-NG/simple-obfs",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 10.11;
+				MACOSX_DEPLOYMENT_TARGET = 10.12;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.qiuyuzhou.ShadowsocksX-NG";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "ShadowsocksX-NG/ShadowsocksX-NG-Bridging-Header.h";