Adding support for setting up a workspace to make framework development more integrated (#508)

Author: ps2

.gitignore

@@ -70,3 +70,5 @@ RemoteSettings.plist
 # OS
 .DS_Store
 
+# Framework development
+Loop.xcworkspace

Loop.xcodeproj/project.pbxproj

@@ -1426,7 +1426,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "# /usr/local/bin/carthage build --platform \"$PLATFORM_NAME\" \"$SRCROOT\"\n/usr/local/bin/carthage copy-frameworks";
+			shellScript = "# /usr/local/bin/carthage build --platform \"$PLATFORM_NAME\" \"$SRCROOT\"\n# Only run this script if we're not using a workspace or installing\nif [ ! -d $PROJECT_DIR/Loop.xcworkspace ] || [ \"$ACTION\" = \"install\" ]; then\n    /usr/local/bin/carthage copy-frameworks\nfi";
 		};
 /* End PBXShellScriptBuildPhase section */