chore(services): rename services.

Closes #711

modules/angular2/test/transform/integration/basic_bind_files/bar.dart

@@ -2,7 +2,7 @@ library bar;
 
 import 'package:angular2/src/core/annotations/annotations.dart';
 
-@Component(selector: 'soup', componentServices: const [ToolTip])
+@Component(selector: 'soup', services: const [ToolTip])
 class MyComponent {}
 
 @Decorator(selector: '[tool-tip]', bind: const {'text': 'tool-tip'})

modules/angular2/test/transform/integration/basic_bind_files/expected/bar.ngDeps.dart

@@ -12,7 +12,7 @@ void setupReflection(reflector) {
       "factory": () => new MyComponent(),
       "parameters": const [],
       "annotations": const [
-        const Component(selector: 'soup', componentServices: const [ToolTip])
+        const Component(selector: 'soup', services: const [ToolTip])
       ]
     })
     ..registerType(ToolTip, {