Merge branch 'master' into swift-2.3

* master:
  Update README.md
  Update rocket link
  Add padding symbols
  Add spacing over heading for rocket section
  Update rocket link position and style
  Add link to Rocket to README
  build with APPLICATION_EXTENSION_API_ONLY = YES

Examples/Locksmith iOS Example/Locksmith iOS Example.xcodeproj/xcshareddata/xcschemes/Locksmith iOS Example.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0720"
+   LastUpgradeVersion = "0800"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Locksmith.xcodeproj/project.pbxproj

@@ -346,26 +346,32 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0700;
-				LastUpgradeCheck = 0720;
+				LastUpgradeCheck = 0800;
 				ORGANIZATIONNAME = "Mathew Palmer";
 				TargetAttributes = {
 					0EC25C581BA385AA004191AF = {
 						CreatedOnToolsVersion = 7.0;
+						LastSwiftMigration = 0800;
 					};
 					0EC25C611BA385AB004191AF = {
 						CreatedOnToolsVersion = 7.0;
+						LastSwiftMigration = 0800;
 					};
 					0EC25C741BA385F6004191AF = {
 						CreatedOnToolsVersion = 7.0;
+						LastSwiftMigration = 0800;
 					};
 					0EC25C7D1BA385F6004191AF = {
 						CreatedOnToolsVersion = 7.0;
+						LastSwiftMigration = 0800;
 					};
 					0EC25CA61BA39C9F004191AF = {
 						CreatedOnToolsVersion = 7.0;
+						LastSwiftMigration = 0800;
 					};
 					FBD0C9481C1866BE00291F2A = {
 						CreatedOnToolsVersion = 7.2;
+						LastSwiftMigration = 0800;
 					};
 				};
 			};
@@ -542,6 +548,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "net.matthewpalmer.Locksmith-iOS";
 				PRODUCT_NAME = Locksmith;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 2.3;
 			};
 			name = Debug;
 		};
@@ -562,6 +569,8 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "net.matthewpalmer.Locksmith-iOS";
 				PRODUCT_NAME = Locksmith;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Release;
 		};
@@ -576,6 +585,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "net.matthewpalmer.Locksmith-iOSTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Debug;
 		};
@@ -590,6 +600,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "net.matthewpalmer.Locksmith-iOSTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Release;
 		};
@@ -613,6 +625,7 @@
 				PRODUCT_NAME = Locksmith;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 2.3;
 			};
 			name = Debug;
 		};
@@ -636,6 +649,8 @@
 				PRODUCT_NAME = Locksmith;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Release;
 		};
@@ -652,6 +667,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "net.matthewpalmer.Locksmith-OS-XTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
+				SWIFT_VERSION = 2.3;
 			};
 			name = Debug;
 		};
@@ -668,6 +684,8 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "net.matthewpalmer.Locksmith-OS-XTests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 2.3;
 			};
 			name = Release;
 		};
@@ -687,6 +705,7 @@
 				PRODUCT_NAME = Locksmith;
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 2.3;
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
@@ -709,6 +728,8 @@
 				PRODUCT_NAME = Locksmith;
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 2.3;
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
@@ -739,6 +760,7 @@
 				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
@@ -754,6 +776,7 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
 				PRODUCT_NAME = "";
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -787,6 +810,7 @@
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
@@ -823,6 +847,7 @@
 				PRODUCT_NAME = Locksmith;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
+				SWIFT_VERSION = 2.3;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -847,6 +872,8 @@
 				PRODUCT_NAME = Locksmith;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
+				SWIFT_VERSION = 2.3;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};

Locksmith.xcodeproj/xcshareddata/xcschemes/Locksmith OS X.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0720"
+   LastUpgradeVersion = "0800"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Locksmith.xcodeproj/xcshareddata/xcschemes/Locksmith iOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0720"
+   LastUpgradeVersion = "0800"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Locksmith.xcodeproj/xcshareddata/xcschemes/Locksmith tvOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0720"
+   LastUpgradeVersion = "0800"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Locksmith.xcodeproj/xcshareddata/xcschemes/Locksmith watchOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0720"
+   LastUpgradeVersion = "0800"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"