Exercise project for JB Rainsbergers TDD course
##Exercise:Fraction
###How to build
Start 'sbt' Session and
run tests on fraction subpackage
fraction/test
publish the fraction module to your local ivy cache
fraction/publish-local
compile/run test on the root subproject, fraction is loaded via libraryDependency from local ivy cache
root/test
run all tests (fraction and root)
test