Fixed pom and set dependency to testing framework
Fully supported custom json data types with low footprint serialization
Made ObjectCreation.FieldCopy lenient for MissingNodes to support outer joins better
Fixed startup scripts
Added exception when parsing incomplete json files & cleaned parser with tests up
Sopremo server saves pid in user-specific file
changed missing value behaviour in BatchAggregationExpression, added failing test accordingly
Merge branch 'master' of https://github.com/AHeise/stratosphere-sopremo
ignored failing test, opened issue on gh