title: What is DotNetCore VS2015 preview tool
body: <p>Am starting to learn DotNet core and i was following the tools needed for the same. I read that after installing VS 2015 I need to install DotNetCore VS2015  preview tool.</p>
  
  <p>What is the need got this preview tool. Can some one help me in understanding what is the need for the same</p>