Bump version to 0.0.4

Author: alan412

src/storage/upgrade_project.ts

@@ -31,7 +31,7 @@ import * as storageProject from './project';
 import { ClassMethodDefBlock, BLOCK_NAME as MRC_CLASS_METHOD_DEF_BLOCK_NAME } from '../blocks/mrc_class_method_def';
 
 export const NO_VERSION = '0.0.0';
-export const CURRENT_VERSION = '0.0.3';
+export const CURRENT_VERSION = '0.0.4';
 
 export async function upgradeProjectIfNecessary(
     storage: commonStorage.Storage, projectName: string): Promise<void> {
@@ -45,8 +45,16 @@ export async function upgradeProjectIfNecessary(
       // @ts-ignore
       case '0.0.1':
         upgradeFrom_001_to_002(storage, projectName, projectInfo);
+      // Intentional fallthrough
+      // @ts-ignore
       case '0.0.2':
         upgradeFrom_002_to_003(storage, projectName, projectInfo);
+      // Intentional fallthrough
+      // @ts-ignore        
+      case '0.0.3':
+        upgradeFrom_003_to_004(storage, projectName, projectInfo);
+      default:
+        throw new Error('Unrecognized project version: ' + projectInfo.version);
 
     }
     await storageProject.saveProjectInfo(storage, projectName);
@@ -137,3 +145,12 @@ async function upgradeFrom_002_to_003(
   }
   projectInfo.version = '0.0.3';
 }
+
+async function upgradeFrom_003_to_004(
+    _storage: commonStorage.Storage,
+    _projectName: string,
+    projectInfo: storageProject.ProjectInfo): Promise<void> {
+  // The only change in this version are some new blocks.  This keeps you
+  // from loading a project with an older version of software.
+  projectInfo.version = '0.0.4';
+}