* RootSettings plugin contains settings for root project
* other auto plugins that are meant only for root project depend on RootSettings
* other auto plugins that are meant for every project are enabled by default reducing boilerplate
- move license and homepage into build definition
- enable sbt-license-report plugin to properly pick it up
- remove hand-coded XML (always a good idea)
- remove ls.implicity.ly plugin
- remove STM reference from README
- fix problem with double organization in pom
- fix scaladoc generation by adding class dir to doc classpath in akka-actor
- update organization to com.typesafe.akka