StreamAggregator implemented
StreamCursor bugfix
DatabaseContent: converter bean properly named
TableDescription object build from data dictionary tuple set
missing Serializable and toString() added
Merge pull request #8 from IDgis/table-description-aggregator

Table description aggregator implemented
publisher-provider module splitted into app and protocol submodule
provider protocol messages moved to publisher-provider-protocol
Stream classes moved into separate packages
Protocol messages moved into separate package
Provider (= main app) renamed to App and new Provider actor implemented
Metadata classes moved into separate package
reference to main class updated
prevent copying of keys into shaded jar
Harvester -> App
Merge pull request #9 from IDgis/restructuring

Project restructuring
Added web domain for dataset, notification, category, job and log item.
publisher-database module utilizing QueryDSL added
DatabaseTest added
PublisherDatabase added