Update to Carthage 0.5 directory structure

Author: jspahrsummers

.gitmodules

@@ -8,11 +8,15 @@
 	path = External/libssh2
 	url = git://git.libssh2.org/libssh2.git
 [submodule "Carthage.checkout/Nimble"]
-	path = Carthage.checkout/Nimble
+	path = Carthage/Checkouts/Nimble
 	url = https://github.com/Quick/Nimble.git
 [submodule "Carthage.checkout/Quick"]
-	path = Carthage.checkout/Quick
+	path = Carthage/Checkouts/Quick
 	url = https://github.com/Quick/Quick.git
 [submodule "Carthage.checkout/xcconfigs"]
-	path = Carthage.checkout/xcconfigs
+	path = Carthage/Checkouts/xcconfigs
 	url = https://github.com/jspahrsummers/xcconfigs.git
+[submodule "Carthage/Checkouts/Nimble"]
+	url = https://github.com/Quick/Nimble.git
+[submodule "Carthage/Checkouts/Quick"]
+	url = https://github.com/Quick/Quick.git

Cartfile.lock renamed to Cartfile.resolved

@@ -905,7 +905,7 @@
 				D0D8186C174421EB00995A2E /* README.md */,
 			);
 			name = Configuration;
-			path = Carthage.checkout/xcconfigs;
+			path = Carthage/Checkouts/xcconfigs;
 			sourceTree = "<group>";
 		};
 		D0D81862174421EB00995A2E /* iOS */ = {