Update composer.json with corrected version of imagemagik so it doesn't break install.

composer.json

@@ -59,7 +59,7 @@
         "drupal/imageapi_optimize": "2.0-alpha4",
         "drupal/imageapi_optimize_binaries": "1.0-alpha1",
         "drupal/imageapi_optimize_resmushit": "1.0-beta1",
-        "drupal/imagemagick": "dev-8.x-2.x-beta1-uw_wcms",
+        "drupal/imagemagick": "8.x-2.0-beta1-uw_wcms-dev",
         "drupal/imce": "1.7",
         "drupal/inline_entity_form": "1.0-rc1",
         "drupal/label_help": "dev-8.x-1.x",