AI Supported

[freaker2k7]

Redash is amazing but I was lacking a bit of AI assistance while using it.
So as Linus said - "The new way to complain is to do a PR" - I created a fork and added the following features:

1. Data Source Description: Help the AI to understand your data better.
2. Text To Query: Use AI to generate SQL, NoSQL and other queries from natural language questions.
3. Auto Visualizations: Use AI to auto-generate visualizations for questions.
4. Auto Alerts: Use AI to generate alert suggestions from your data and queries.
5. Name To Dashboard: Use AI to generate dashboards from your queries and visualizations.
6. MacOS Support: Now it runs on MacOS as well as on Linux.
7. Memcached Support: Added Memcached as a supported data source (Bonus, because I wanted to add key-value stores).

I already did all the work at https://github.com/freaker2k7/redash and wanted ask if such a PR will be even looked upon ?
I know I need to rebase, will do it soon.

NOTE: I'll revert the README.md for the PR, if you think I should push it.