Bump project Swift version to 5

Author: tiennou

ObjectiveGitFramework.xcodeproj/project.pbxproj

@@ -1766,7 +1766,7 @@
 					"$(inherited)",
 					"-DGIT_SSH",
 				);
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WARNING_CFLAGS = (
 					"$(inherited)",
@@ -1804,7 +1804,7 @@
 					"$(inherited)",
 					"-DGIT_SSH",
 				);
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WARNING_CFLAGS = (
 					"$(inherited)",
@@ -1883,7 +1883,6 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libgit2.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Debug;
 		};
@@ -1904,7 +1903,6 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libgit2.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Release;
 		};
@@ -1937,7 +1935,7 @@
 					"$(inherited)",
 					"-DGIT_SSH",
 				);
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WARNING_CFLAGS = (
 					"$(inherited)",
@@ -1992,7 +1990,6 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libgit2.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Test;
 		};
@@ -2157,7 +2154,7 @@
 					"$(inherited)",
 					"-DGIT_SSH",
 				);
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				WARNING_CFLAGS = (
 					"$(inherited)",
@@ -2212,7 +2209,6 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.libgit2.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
 			};
 			name = Profile;
 		};