First collaboration commit to lambda-architecture.net

First collaborations on my side:
- Added the post at Datasalt's blog with the Trident + Splout lambda architecture example.
- Revised the "Batch technologies".

I am also working on a new article with my "state-of-the-art" of the Lambda Architectures which I think will be pretty interesting to have... Will do another pull request when I review and improve it further (in a few days).