1. update sbt0.13.6, scala 2.11.4, play 2.3.6,..
2. remove activator
3. add javacOptions: compile target 7 using jdk 8
v2.1.0:
1. use HikariCP instead of BoneCP, remove AutoCleanConnection. see: https://github.com/playframework/playframework/issues/2445#issuecomment-37495865
2. add class play.api.Logger (in previous version, this type is just an alias to org.slf4j.Logger). object play.api.Logger is now also an LoggerLike as in the full play version - so, we can use it directly as: Logger.info(..)
3. play-jdbc config now require configs for `user` & `password` even if you use a driver previously do NOT need those configs - ex when use h2 driver.