updating coveralls version, ensuring node_env is test before sending coverage to coveralls

Author: ava-macg

package-lock.json

@@ -21,7 +21,7 @@
         "babel-preset-react": "^6.24.1",
         "babel-preset-stage-0": "^6.24.1",
         "chai": "^4.1.2",
-        "coveralls": "^3.0.1",
+        "coveralls": "^3.1.0",
         "css-loader": "^4.2.2",
         "enzyme": "^3.2.0",
         "enzyme-adapter-react-16": "^1.1.1",
@@ -66,7 +66,7 @@
         "modules:size-analyzer": "webpack --config webpack/webpack.config.js --json | webpack-bundle-size-analyzer",
         "test": "npm run test:unit && npm run test:coverage",
         "test:unit": "nyc mocha test/**/*-test.js",
-        "test:coverage": "nyc report --reporter=text-lcov | coveralls",
+        "test:coverage": "NODE_ENV=test nyc report --reporter=text-lcov | coveralls",
         "test:watch": "nyc mocha -w test/**/*-test.js",
         "lint": "./node_modules/.bin/eslint src",
         "lint-fixup": "./node_modules/.bin/eslint src --ext .js,.jsx --fix",