fix many issues
Merge pull request #5 from xuwei-k/fix-build.sbt

Fixed build.sbt
- Deleted needless scalaBinaryVersion and dependencies
- Doubling "org.slf4j" % "slf4j-api" % "1.6.4"
- Updated fluent-logger from 0.2.7 to 0.2.8
- Updated msgpack-scala from 0.6.6 to 0.6.7