*Scala [#qe7175fd] **Install (for Mac OS X) [#zc462f08] *** play framework [#b2d4af92] $ brew install typesafe-activator -参考 --https://www.playframework.com/documentation/2.3.x/Migration23 --http://tototoshi.hatenablog.com/entry/2014/05/31/153143