title: Eslint - SourceType mixture of script and module
body: <p>We are starting to mix in some es6 modules and eslint justly complains when you use import/export when not using the sourceType: script</p>
  
  <pre><code>Parsing error: 'import' and 'export' may appear only with 'sourceType: module'at line 1 col 1
  </code></pre>
  
  <p>However if I change sourceType to module then every file that has 'use strict'; at the top gets flagged saying use strict isn't needed in modules.</p>
  
  <p>The modules are my jsx files and my js files are POJ so I need both sourceTypes to be operating.</p>
  
  <p>Any ideas on how to coerce eslint to behave with both modules and scripts? I would like to avoid running two seperate eslintrc files and rule sets just to have one be modules and the other be scripts. </p>