Rewrite with Spring Boot

[qwazer]

Rewrite this app with Spring Boot and replace all command-line parameters with flexible, highly configurable spring-boots externalized properties.
http://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html
It will allow

• more flexible configurations in CI environments
• eliminate several names for certain parameter

[qwazer]

also relates to #45

[qwazer]

http://docs.spring.io/spring-boot/docs/current/reference/html/howto-properties-and-configuration.html#howto-use-short-command-line-arguments