Build war with maven and spark-java-install framework.

Steps:

1. Download a fresh Tomcat 8 distribution
2. Clone this repository to your local machine
3. Run mvn package
4. Copy the generated sparkjava-hello-world-1.0.war to the Tomcat webapps folder
5. Start Tomcat by running bin\startup.bat (or bin\startaup.sh for Linux)
6. Tomcat will automatically deploy the war
7. Open http://localhost:8080/sparkjava-hello-world-1.0/hello in your browser