Refactored Journal Storage for H2 and MySQL
It is now easier to send async requests to projections for getting data
Added toString method
Updated pom.xml for preparing for release
Added reference to parent pom
[maven-release-plugin] prepare release v2.3.1
[maven-release-plugin] prepare for next development iteration
Upped release version in readme file
Merge pull request #7 from jansoren/develop

It is now easier to send async requests to projections for getting data