filter: added basic uploading of jar files
rest: removed db content from PluginMetaData
rest: added downloading of plugins
filter: added CsvSourceAdapter
data: added equals and hashCode to DataSourceMetaData
test: added DataSourceApiTest integration test
test: added AbstractDataSourceTest for handling source lifecycle
test: added FilterChainApiTest
test: added DataViewApiTest
filter: renamed FilterAnnotation to FilterName
filter: FilterReference can contain arguments for filter creation
test: fixed NotificationClientRepositoryTest
filter: CsvSourceAdapter uses apache impl and fixed filter creation bugs