I want to resolve #1 in this commit that make the application runs on Google App Engine

- Created a project which has 3 modules, 'war', 'service' and 'data'.
- And these have pom.xml files and basic directory structures of maven.
- The project is configured to be able to run on Google App Engine.
- index.jsp has be created to test running on 'devserver' which provided appengine-maven-plugin.
- .gitkeep files have put into each empty directory to commit into GIT.
- .gitignore has be created to support development with Eclipse. And IntelliJ IDEA maybe supported
Merge pull request #2 from yusukemasuda/feature/#1

I want to resolve #1 in this commit that make the application runs on Google App Engine