Introduces standard indexes on ID and _MC properties.
Upsert operation supported.

Includes a major refactoring: simplifying the repositoryActions, by
using a single Repository object (previously MongoRepository).
Fixes bug in geoJsonFeature Generator.

GeoJSON Features should also contains a "type" property.
Deprecates onLoad and onDatabase methods.
Adds geoJsonFeatureArray generator.
Better FeatureCollection API acceptance testing.
Minor improvements to FeatureCollection API acceptance tests.
Expands FeatureCollection API acceptance tests.
Change in Tx Upsert API (now expects only feature input)
Resolves bug when first inserted object is very large.
Increased max. request size in application.conf