Change Deployment Target to 10.7. Apparently going below 10.10 was only an issue with Swift

ZeroTier One.xcodeproj/project.pbxproj

@@ -329,7 +329,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				INFOPLIST_FILE = "ZeroTier One/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.10;
+				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.zerotier.ZeroTier-One";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "ZeroTier One/ZeroTier One-Bridging-Header.h";
@@ -344,7 +344,7 @@
 				COMBINE_HIDPI_IMAGES = YES;
 				INFOPLIST_FILE = "ZeroTier One/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.10;
+				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				PRODUCT_BUNDLE_IDENTIFIER = "com.zerotier.ZeroTier-One";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "ZeroTier One/ZeroTier One-Bridging-Header.h";