Update RELEASE.md
Update RELEASE.md

PredictionIO/PredictionIO,takezoe/incubator-predictionio,shimamoto/incubator-predictionio,shimamoto/incubator-predictionio,marevol/incubator-predictionio,shimamoto/incubator-predictionio,marevol/incubator-predictionio,takezoe/incubator-predictionio,marevol/incubator-predictionio,shimamoto/incubator-predictionio,dszeto/incubator-predictionio,PredictionIO/PredictionIO,dszeto/incubator-predictionio,takezoe/incubator-predictionio,marevol/incubator-predictionio,takezoe/incubator-predictionio,dszeto/incubator-predictionio,PredictionIO/PredictionIO,dszeto/incubator-predictionio