title: How to install sbt-idea and use gen-idea
body: <p>I have downloaded and installed sbt and plugin for gen-idea.
  But the built projects can not be run on idea.
  Also the "project" folder is not generated when I run gen-idea.
  Can someone please tell me how I should install sbt and sbt-idea plugin and configure it, as I think the problem here is configuring.</p>