Release preparations
Autogenerated markdown documentation
Setting version to 0.5.0:

* Started using [nice-sbt-settings](https://github.com/ohnosequences/nice-sbt-settings) plugin (that means, that we don't crosscompile anymore);
* Moved to Java 7;
* Updated dependencies versions;
* Removed debug output when publishing artifacts;
Setting version to '0.6.0-SNAPSHOT'