Update to abcjs 5.1.0

Author: paulrosen

package-lock.json

@@ -16,7 +16,7 @@
  "dependencies": {},
  "devDependencies": {
  "@nuxtjs/axios": "^5.3.1",
- "abcjs": "^5.0.1",
+ "abcjs": "^5.1.0",
  "babel-eslint": "^8.2.3",
  "babel-polyfill": "^6.26.0",
  "cross-env": "^5.1.5",