Rename Angular2Spa to AngularSpa, plus rephrase "Angular 2" as "Angular" in many places

templates/AngularSpa/ClientApp/app/app.module.server.ts

@@ -0,0 +1,14 @@
+import { NgModule } from '@angular/core';
+import { ServerModule } from '@angular/platform-server';
+import { sharedConfig } from './app.module.shared';
+
+@NgModule({
+    bootstrap: sharedConfig.bootstrap,
+    declarations: sharedConfig.declarations,
+    imports: [
+        ServerModule,
+        ...sharedConfig.imports
+    ]
+})
+export class AppModule {
+}