Added release notes
Autogenerated markdown documentation
Setting version to 0.4.0-RC3:

* Upgrades:
    + sbt-s3-resolver -> v0.10.1 (a bugfix)
    + sbt-release -> 0.8.3 (with git cwd fix)
    + sbt-assembly -> 0.11.2 (with perf improvements and fixes)
    + sbt-updates -> 0.1.5 (with a bugfix)
* gh-pages generation step now doesn't fail if there is no gh-pages branch
Setting version to '0.4.0-SNAPSHOT'