fix: circleci config to work out of the box

- use npm ci in CI install
- organize npm dependencies
- add missing test dependency @babel/register
- fix typos and cleanup

Author: iAmNathanJ

.circleci/config.yml

@@ -7,7 +7,7 @@ jobs:
   build:
     docker:
       # specify the version you desire here
-      - image: circleci/node:10.15
+      - image: circleci/node:10.13.0-browsers
 
       # Specify service dependencies here if necessary
       # CircleCI maintains a library of pre-built images
@@ -22,24 +22,18 @@ jobs:
       # Download and cache dependencies
       - restore_cache:
           keys:
-            - v1-dependencies-{{ checksum "package.json" }}
-            # fallback to using the latest cache if no exact match is found
-            - v1-dependencies-
+            # when lock file changes, use increasingly general patterns to restore cache
+            - node-v1-{{ .Branch }}-{{ checksum "package-lock.json" }}
+            - node-v1-{{ .Branch }}-
+            - node-v1-
 
-      - run:
-          command: npm install
-          working_directory: ~/repo/yaps
+      - run: npm ci
 
       - save_cache:
           paths:
-            - node_modules
-          key: v1-dependencies-{{ checksum "package.json" }}
+            - ~/usr/local/lib/node_modules  # location depends on npm version
+          key: node-v1-{{ .Branch }}-{{ checksum "package-lock.json" }}
 
-      # run eslint
-      - run:
-          command: npm run lint
-          working_directory: ~/repo
-
-      # run tests!
-      - run:
-          command: npm test
+      # run all linting and testing
+      - run: npm run lint
+      - run: npm t