started using fake mongo. dataset to create
Merge branch 'master' into tooling/useMemoryDbAndIndexForUnitTest
UNSTABLE problem of configuration. while running tests on service or ws layer, MongoConfTest not taken into account and localhost db is used instead of in memory db. TO SOLVE
Dataset on categories and trainingset otherwise created. Methods tested with the initialisation of mongo collections
Do unit tests in memory database. AAHHOOOOOUUUUUUUUUUUU