Add missing pieces to run Eureka client/server for the current code base.

To run server execute:
cd eureka-server
../gradlew runWriteServer

To run client:
cd eureka-test-utils
../gradlew build
./build/cli.sh

Run help, to get a list of available commands.
Merge pull request #183 from tbak/2.x

Add missing pieces to run Eureka client/server for the current code base