added gradle build script
* converted from Java to a Groovy
* started using Spock
* converted  from Java to Groovy
* started using Spock
* converted from Java to Groovy
* started using Spock
* converted from Java to Groovy
* started using Spock
* converted from Java to Groovy
* started using Spock
* converted from Java to Groovy
* started using Spock
* converted assertEquals statements to Hamcrest equivalent
* converted from Java to Groovy
* started using Spock
* converted from Java to Groovy
* started using Spock
* converted from Java to Groovy
* started using Spock