Refactor models to allow for build parameters...

Build parameters have to be parsed because they can no longer be implicitly passed, as they need to be interpreted for detecting extensions.

src/model/action.js

@@ -1,6 +1,6 @@
 import path from 'path';
 
-export default class Action {
+class Action {
   static get supportedPlatforms() {
     return ['linux'];
   }
@@ -44,3 +44,5 @@ export default class Action {
     }
   }
 }
+
+export default Action;