project-wide change of copyright, package names, and maven groupIds

copyright: Andy Dennie -> Fizz Buzz LLC
java package names: com.andydennie.* -> com.fizzbuzz.*
maven groupId: com.andydennie.vroom -> com.fizz-buzz.vroom
Merge pull request #34 from adennie/fizz-buzz

project-wide change of copyright, package names, and maven groupIds