Add tool/sbt-extras submodule
Add boilerplate entries to .gitignore
Add sbt launcher
Add a boilerplate sbt project
Update sbt-idea to 1.2.0
Add AGPLv3 license text
Add breakable and __
Add specs for breakable
Add COPYING.md and README.md
Remove unneccesary trait breakable.Nil
Format breakable.scala
Add an doc comment to breakable
Add build.properties
Merge branch '#1' into 0.0.x - for 0.0.1, close #1
Merge branch '0.0.x' - for 0.0.1