Add npm run jest script to package.json

Summary:This makes it easier to just run a jest test and skip the flow type checking.

```
npm run jest MyTest
```
Closes #992

Reviewed By: yungsters

Differential Revision: D3098333

Pulled By: kassens

fb-gh-sync-id: aee04c1764e75eb7c9a96a074301e627551a5f49
fbshipit-source-id: aee04c1764e75eb7c9a96a074301e627551a5f49

package.json

@@ -21,9 +21,10 @@
   "repository": "facebook/relay",
   "scripts": {
     "build": "gulp",
+    "jest": "NODE_ENV=test jest $@",
     "lint": "eslint .",
     "prepublish": "node node_modules/fbjs-scripts/node/check-dev-engines.js package.json && npm run build",
-    "test": "f() { EXIT=0; npm run typecheck || EXIT=$?; NODE_ENV=test jest $@ || EXIT=$?; exit $EXIT; }; f",
+    "test": "f() { EXIT=0; npm run typecheck || EXIT=$?; npm run jest || EXIT=$?; exit $EXIT; }; f",
     "typecheck": "flow check src/",
     "update-schema": "babel-node ./scripts/jest/updateSchema.js"
   },

scripts/babel-relay-plugin/package.json

@@ -7,12 +7,13 @@
   "main": "lib/getBabelRelayPlugin.js",
   "scripts": {
     "build": "node scripts/build-lib",
+    "jest": "NODE_ENV=test jest $@",
     "lint": "eslint .",
     "prepublish": "npm run build",
-    "test": "f() { EXIT=0; npm run typecheck || EXIT=$?; NODE_ENV=test jest $@ || EXIT=$?; exit $EXIT; }; f",
+    "test": "f() { EXIT=0; npm run typecheck || EXIT=$?; npm run jest || EXIT=$?; exit $EXIT; }; f",
     "typecheck": "flow check src/",
-    "update-schema": "babel-node ./src/tools/generateSchemaJson.js",
-    "update-fixtures": "babel-node ./src/tools/regenerateFixtures.js"
+    "update-fixtures": "babel-node ./src/tools/regenerateFixtures.js",
+    "update-schema": "babel-node ./src/tools/generateSchemaJson.js"
   },
   "files": [
     "LICENSE",