Only apps should have lockfiles.

Also, ensure that our `npm run react` scripts don’t modify package.json

.gitignore

@@ -31,3 +31,6 @@ node_modules
 
 /build
 _book
+
+# Only apps should have lockfiles
+package-lock.json

.npmrc

@@ -0,0 +1 @@
+package-lock=false

package.json

@@ -22,10 +22,10 @@
     "test:all": "npm run react:13 && npm run test:only && npm run react:14 && npm run test:only && npm run react:15.4 && npm run test:only && npm run react:15 && npm run test:only",
     "clean-local-npm": "rimraf node_modules/.bin/npm node_modules/.bin/npm.cmd",
     "react:clean": "npm run clean-local-npm && rimraf node_modules/react node_modules/react-dom node_modules/react-addons-test-utils node_modules/react-test-renderer",
-    "react:13": "npm run react:clean && npm i react@0.13 && npm install",
-    "react:14": "npm run react:clean && npm i react@0.14 react-dom@0.14 react-addons-test-utils@0.14 && npm install",
-    "react:15.4": "npm run react:clean && npm i react@15.4 react-dom@15.4 react-addons-test-utils@15.4 && npm install",
-    "react:15": "npm run react:clean && npm i react@15 react-dom@15 create-react-class@15 react-test-renderer@^15.5.4 && npm install",
+    "react:13": "npm run react:clean && npm i --no-save react@0.13 && npm install",
+    "react:14": "npm run react:clean && npm i --no-save react@0.14 react-dom@0.14 react-addons-test-utils@0.14 && npm install",
+    "react:15.4": "npm run react:clean && npm i --no-save react@15.4 react-dom@15.4 react-addons-test-utils@15.4 && npm install",
+    "react:15": "npm run react:clean && npm i --no-save react@15 react-dom@15 create-react-class@15 react-test-renderer@^15.5.4 && npm install",
     "docs:clean": "rimraf _book",
     "docs:prepare": "gitbook install",
     "docs:build": "npm run docs:prepare && gitbook build",