Please replace TSlint with ESlint

[felipesilvati]

According to palantir/tslint#4534, TSlint will be deprecated in the near future and it will be replaced with ESlint as the 'standard JavaScript and TypeScript' linter.

Please update the boiler-plate accordingly. Thank you.

[peterblazejewicz]

@felipesilvati
This could be a long road, but let's try. I've created the #211, so if you could, please look into proposed change and post your feedback.
Thanks!

[peterblazejewicz]

@felipesilvati Landed in the master. Current version should be polished out in near future.