lock new version to 2.30+, bump version to 1.6.3

Merge pull request #61 from alexandre-spieser/alex/updateToDriverToV2-28

update driver to 2.28

Merge pull request #57 from mrtaikandi/mongodriver-2.25

Upgrade MongoDb driver and its related packages to 2.25.0

Merge pull request #56 from mrtaikandi/mongodriver-2.20

Upgrade to MongoDb Driver 2.20 and use GuidRepresentationMode.V3 as the default representation.
This potentially can cause a breaking change to the package consumer, but the behaviour can be set to V2 by overriding the void SetGuidRepresentation(GuidRepresentation guidRepresentation) method.
GuidRepresentation and GuidRepresentationMode will be removed in the next major release of the MongoDB Driver:
https://www.mongodb.com/community/forums/t/c-guid-style-dont-work/126901/2
What's new in 2.20 and 2.19:
https://www.mongodb.com/docs/drivers/csharp/current/whats-new/#std-label-csharp-whats-new

upgrade to MongoDb Driver 2.18 - 2.19 seems to have some broken some …

…tests, investigating.

Merge pull request #55 from blacktau/feature/cancellation-token-2

Feature/cancellation token 2
All comments addressed. Thanks Sean!

Upgraded MongoDB.Driver to 2.13.2, move target framework of CoreInteg…

…rationTests to netcoreapp2.1

Merge pull request #39 from alexandre-spieser/alex/CancellationTokenWork

Alex/cancellation token work

Merge pull request #35 from alexandre-spieser/alex/UpdateMany

remove default option: IsUpset = true in update methods, to avoid une…

Merge pull request #34 from alexandre-spieser/alex/UpdateMany

Alex/update many