TwooPack/data-viz — pull request #1 by guigeekz (2014-09-02 12:31:00+00:00)
Title: [data-viz back] generator json first version

**create gem environment :**
- lib folder
- app folder
- gitignore
- data_viz.gemspec

**data_viz first version :**

- data_viz model :
- generate_json static method to generate the data-model json
- lib/data_viz.rb :
- engine protoype