Upgrade dependencies

package.json

@@ -33,37 +33,37 @@
     "classnames": "^2.2.6",
     "bluebird": "^3.5.2",
     "codecov": "^3.1.0",
-    "gatsby": "^2.0.46",
-    "gatsby-link": "^2.0.4",
-    "gatsby-plugin-catch-links": "^2.0.4",
-    "gatsby-plugin-feed": "^2.0.8",
-    "gatsby-plugin-google-analytics": "^2.0.6",
-    "gatsby-plugin-netlify": "^2.0.3",
-    "gatsby-plugin-netlify-cms": "^3.0.7",
-    "gatsby-plugin-offline": "^2.0.6",
-    "gatsby-plugin-react-helmet": "^3.0.0",
-    "gatsby-plugin-sass": "^2.0.3",
-    "gatsby-plugin-sharp": "^2.0.6",
-    "gatsby-plugin-sitemap": "^2.0.1",
-    "gatsby-remark-copy-linked-files": "^2.0.5",
-    "gatsby-remark-images": "^2.0.4",
-    "gatsby-remark-prismjs": "^3.0.2",
-    "gatsby-remark-responsive-iframe": "^2.0.5",
-    "gatsby-remark-relative-images": "^0.2.0",
-    "gatsby-remark-smartypants": "^2.0.5",
-    "gatsby-source-filesystem": "^2.0.3",
-    "gatsby-transformer-remark": "^2.1.12",
-    "gatsby-transformer-sharp": "^2.1.3",
+    "netlify-cms": "^2.3.3",
+    "node-sass": "^4.11.0",
+    "gatsby": "^2.0.76",
+    "gatsby-link": "^2.0.8",
+    "gatsby-plugin-catch-links": "^2.0.9",
+    "gatsby-plugin-feed": "^2.0.11",
+    "gatsby-plugin-google-analytics": "^2.0.9",
+    "gatsby-plugin-netlify": "^2.0.6",
+    "gatsby-plugin-netlify-cms": "^3.0.9",
+    "gatsby-plugin-offline": "^2.0.21",
+    "gatsby-plugin-react-helmet": "^3.0.5",
+    "gatsby-plugin-sass": "^2.0.7",
+    "gatsby-plugin-sharp": "^2.0.17",
+    "gatsby-plugin-sitemap": "^2.0.4",
+    "gatsby-remark-copy-linked-files": "^2.0.8",
+    "gatsby-remark-images": "^3.0.1",
+    "gatsby-remark-prismjs": "^3.2.0",
+    "gatsby-remark-responsive-iframe": "^2.0.8",
+    "gatsby-remark-relative-images": "^0.2.1",
+    "gatsby-remark-smartypants": "^2.0.7",
+    "gatsby-source-filesystem": "^2.0.16",
+    "gatsby-transformer-remark": "^2.2.0",
+    "gatsby-transformer-sharp": "^2.1.10",
     "invariant": "^2.2.4",
     "lodash": "^4.17.11",
-    "moment": "^2.2.2",
-    "netlify-cms": "^2.1.3",
-    "node-sass": "^4.9.4",
+    "moment": "^2.23.0",
     "normalize-scss": "^7.0.1",
     "prismjs": "^1.15.0",
-    "react": "^16.2.0",
-    "react-disqus-comments": "^1.2.0",
-    "react-dom": "^16.4.1",
+    "react": "^16.7.0",
+    "react-disqus-comments": "^1.4.0",
+    "react-dom": "^16.7.0",
     "react-helmet": "^5.2.0"
   },
   "devDependencies": {
@@ -75,25 +75,25 @@
     "babel-core": "^7.0.0-0",
     "babel-jest": "^23.6.0",
     "identity-obj-proxy": "^3.0.0",
-    "react-test-renderer": "^16.2.0",
+    "react-test-renderer": "^16.7.0",
     "jest": "^23.6.0",
     "jest-cli": "^23.6.0",
-    "rimraf": "^2.6.2",
-    "concurrently": "^3.5.1",
-    "stylelint": "^9.6.0",
-    "stylelint-scss": "^3.3.2",
+    "rimraf": "^2.6.3",
+    "concurrently": "^4.1.0",
+    "stylelint": "^9.10.1",
+    "stylelint-scss": "^3.5.1",
     "stylelint-config-recommended-scss": "^3.2.0",
-    "eslint": "^4.15.0",
-    "eslint-config-airbnb-base": "^12.1.0",
-    "eslint-plugin-import": "^2.8.0",
-    "eslint-plugin-jest": "^21.7.0",
-    "eslint-plugin-react": "^7.5.1",
-    "eslint-watch": "^3.1.3",
-    "babel-eslint": "^8.2.1",
+    "eslint": "^5.12.1",
+    "eslint-config-airbnb-base": "^13.1.0",
+    "eslint-plugin-import": "^2.14.0",
+    "eslint-plugin-jest": "^22.1.3",
+    "eslint-plugin-react": "^7.12.4",
+    "eslint-watch": "^4.0.2",
+    "babel-eslint": "^10.0.1",
     "gh-pages": "^2.0.1",
     "lost": "^8.3.0",
     "postcss-pxtorem": "^4.0.1",
-    "autoprefixer": "^9.3.1",
-    "browserslist": "^4.3.4"
+    "autoprefixer": "^9.4.6",
+    "browserslist": "^4.4.1"
   }
 }