by slashrsm: Chase HEAD: Use \Drupal\Core\Render\BareHtmlPageRenderer.
Issue #2389063 by slashrsm: Temporary disable form cache.
Merge pull request #34 from slashrsm/2387747

Chase HEAD: Use \Drupal\Core\Render\BareHtmlPageRenderer
Merge pull request #35 from slashrsm/2389063

Temporary disable form cache
2291249 implementing Modal display
2291249 removed debug code
2291249 removed commented out code
2991249 added DisplayAjaxInterface
2291249 changed variable
2291249 removed unneeded classes
Merge branch '2291249' of github.com:kmoll/entity_browser into 2291249