title: PhpStorm starts indexing files on each launch
body: <p>I am not sure if this is desired behaviour, but PhpStorm (8.0.3) proceeds to index all files and directories each time I open the IDE. The indexing takes too long - half hour and more. During that time I'm not able to access many configuration options or use "Go to definition" option.</p>
  
  <p>It is very irritating. Shouldn't PhpStorm somehow cache the indices so that it does not go through the whole process over and over again?</p>
  
  <p>It seems that the problem grew over time and at this time it totally paralizes my ability to work on projects.</p>
  
  <p>Is there a solution to it that you know of?</p>