Added build.sbt
Created SbtLock.scala
Choose one revision for each artifacts
Added unlock
Separated SbtLockPlugin
Set version
Use IO#write
Use streams instead of println
Added README
Fixed sbt version
Merge pull request #1 from seratch/develop

Fixed sbt version
Added sonatype settings
Added sbt-release
Setting version to 0.1.0
Setting version to 0.1.1-SNAPSHOT
Updated readme