switched version to 0.4-SNAPSHOT
Merge pull request #15 from mleich/0.4-ozone-compatibility

0.4-SNAPSHOT compatibility
update encrypted sonatype credentials for this repo
Remove JDK1.6 support

* fix readme file
* remove support fir jdk1.6
* use mvn clean package for the build
Merge pull request #20 from TU-Berlin/jdk16

Remove JDK1.6 support
Merge pull request #14 from fatschi/master

NullNode serialization and CP unification
Reworked aggregations to allow combinable reducers
Fixed meteor tests with loaded packages
Fixed sopremo record layout bug when a key expression is VALUE