Interface handling: generate queries for interface types + FRAGMENT_TYPE fix

package.json

@@ -11,7 +11,7 @@
     "build": "babel src --presets @babel/preset-env --out-dir dist",
     "build-with-sourcemaps": "babel src --presets @babel/preset-env --out-dir dist --source-maps",
     "precommit": "lint-staged",
-    "prepublish": "npm run build",
+    "prepare": "npm run build",
     "test": "nyc --reporter=lcov ava test/unit/**.test.js --verbose",
     "parse-tck": "babel-node test/helpers/tck/parseTck.js",
     "test-tck": "nyc ava --fail-fast test/unit/filterTests.test.js",