chore(Library): Prep for release.

Update deps and bump version for release.

package.json

@@ -4,7 +4,7 @@
   "main": "lib/index.js",
   "module": "dist/polished.es.js",
   "types": "lib/index.d.ts",
-  "version": "3.0.0-beta.4",
+  "version": "3.0.0",
   "scripts": {
     "build": "yarn build:lib && yarn build:dist && yarn build:flow && yarn build:docs && yarn build:typescript",
     "prebuild:lib": "shx rm -rf lib/*",
@@ -65,7 +65,7 @@
   "homepage": "https://github.com/styled-components/polished#readme",
   "devDependencies": {
     "@babel/cli": "^7.2.3",
-    "@babel/core": "^7.2.2",
+    "@babel/core": "^7.3.3",
     "@babel/plugin-transform-runtime": "^7.2.0",
     "@babel/polyfill": "^7.2.5",
     "@babel/preset-env": "^7.3.1",
@@ -79,15 +79,15 @@
     "cross-env": "^5.2.0",
     "cz-conventional-changelog": "^2.1.0",
     "documentation": "9.1.1",
-    "eslint": "^5.13.0",
+    "eslint": "^5.14.0",
     "eslint-config-airbnb-base": "^13.1.0",
     "eslint-plugin-import": "^2.16.0",
     "flow-bin": "^0.93.0",
     "flow-copy-source": "^2.0.3",
     "flow-coverage-report": "^0.6.1",
     "husky": "^1.3.1",
     "jest": "^24.1.0",
-    "lint-staged": "^8.1.3",
+    "lint-staged": "^8.1.4",
     "lodash": "^4.17.11",
     "npm-watch": "^0.6.0",
     "prettier": "^1.16.4",