Fix for #90
Extract @ObjectId from @Id which is now just an alias for @JsonProperty("_id")
Ensure all driver versions are tested
Update mininal driver version to 2.9.0
Rename withConcern into withWriteConcern

closes #124
Update minimal driver version into drivers test script
Merge pull request #120 from bguerout/features/ids

Extract @ObjectId from @Id
Merge pull request #126 from dwursteisen/master

hint method on Find command
Polish @Id tests
Reformat and organize imports
update jackson & bson4jackson
Use validate admin command for test (no auth required)
Remove safeHasNext method thanks to bson4jackson 2.1.1
Remove getMapper() only used by projection spike
Remove useless public keyword
Remove temporarly in-memory mongo rule
Reformat code
[maven-release-plugin] prepare release 0.4
[maven-release-plugin] prepare for next development iteration
Refacto ObjectIdUpdater to allow pojo insertion