doc(readme): Why do we use Play 2.2.x and not the latest version
doc(readme): Why do we use Play 2.2.x and not the latest version

rasata/cfp-devoxx,dadoonet/cfp-devoxx,dadoonet/cfp-devoxx,rasata/cfp-devoxx,dadoonet/cfp-devoxx,rasata/cfp-devoxx