move shared files up to superclass

lib/generators/helloworld.dart

@@ -16,11 +16,9 @@ class HelloWorldGenerator extends Generator {
       "A simple hello world command-line application.",
       categories: const ['dart', 'helloworld']) {
 
-    _addFile('.gitignore', gitIgnoreContents);
-    _addFile('pubspec.yaml', _pubspec);
-    _addFile('readme.md', _readme);
-    _addFile('bin/helloworld.dart', _helloworld);
-    _addFile('LICENSE', license);
+    addFile('pubspec.yaml', _pubspec);
+    addFile('readme.md', _readme);
+    addFile('bin/helloworld.dart', _helloworld);
 
     setEntrypoint(files.last);
   }
@@ -45,6 +43,4 @@ main() {
 }
 ''';
 
-  TemplateFile _addFile(String path, String contents) =>
-      addFile(new TemplateFile(path, contents));
 }

lib/generators/webapp.dart

@@ -17,18 +17,13 @@ class WebAppGenerator extends Generator {
       "too much going on.",
       categories: const ['dart', 'web']) {
 
-    _addFile('.gitignore', gitIgnoreContents);
-    _addFile('pubspec.yaml', _pubspec);
-    _addFile('readme.md', _readme);
-    _addFile('web/styles.css', _styles);
-    setEntrypoint(_addFile('web/index.html', _index));
-    _addFile('web/main.dart', _main);
-    _addFile('LICENSE', license);
+    addFile('pubspec.yaml', _pubspec);
+    addFile('readme.md', _readme);
+    addFile('web/styles.css', _styles);
+    setEntrypoint(addFile('web/index.html', _index));
+    addFile('web/main.dart', _main);
   }
 
-  TemplateFile _addFile(String path, String contents) =>
-      addFile(new TemplateFile(path, contents));
-
   String get _pubspec => '''
 name: {{projectName}}
 description: >

lib/stagehand.dart

@@ -38,7 +38,10 @@ abstract class Generator {
   final List<TemplateFile> files = [];
   TemplateFile _entrypoint;
 
-  Generator(this.id, this.description, {this.categories: const []});
+  Generator(this.id, this.description, {this.categories: const []}) {
+    addFile('.gitignore', gitIgnoreContents);
+    addFile('LICENSE', license);
+  }
 
   /**
    * The entrypoint of the application; the main file for the project, which an
@@ -49,7 +52,7 @@ abstract class Generator {
   /**
    * TODO:
    */
-  TemplateFile addFile(TemplateFile file) {
+  TemplateFile addTemplateFile(TemplateFile file) {
     files.add(file);
     return file;
   }
@@ -73,6 +76,9 @@ abstract class Generator {
   int numFiles() => files.length;
 
   String toString() => '[${id}: ${description}]';
+
+  TemplateFile addFile(String path, String contents) =>
+    addTemplateFile(new TemplateFile(path, contents));
 }
 
 /**