Fix yarn cache and other warnings in package.json and fix documentation

README.md

@@ -64,8 +64,8 @@ Getting permission errors or Failed messages when trying to run `yarn start`?
 From the webui repo
 ```
 rm -rf node_modules (may need root)
-rm package-lock.json
-yarn cache clear --force
+rm yarn.lock 
+yarn cache clean --force
 yarn install
 ```
 This should bring the yarn environment back to a useable state.

package.json

@@ -15,13 +15,13 @@
     "start:prod:aot": "yarn run po2json && ng serve --prod --aot",
     "build": "yarn run po2json && yarn run clean:dist && node --max_old_space_size=8192 node_modules/@angular/cli/bin/ng build",
     "build:prod": "node scripts/setup_prod.js && yarn run build -- --prod",
-    "build:prod:aot": "yarn run build:prod -- --aot --base-href /ui/",
+    "build:prod:aot": "yarn run build:prod --aot --base-href /ui/",
     "test": "ng test",
     "lint": "ng lint",
     "e2e": "ng e2e",
-    "clean:dist": "yarn run rimraf -- dist",
-    "clean:coverage": "yarn run rimraf -- coverage",
-    "reinstall": "yarn run rimraf package-lock.json; yarn run rimraf node_modules; yarn cache clear -f; yarn install",
+    "clean:dist": "yarn run rimraf dist",
+    "clean:coverage": "yarn run rimraf coverage",
+    "reinstall": "yarn run rimraf yarn.lock; yarn run rimraf node_modules; yarn cache clean -f; yarn install",
     "extract": "node scripts/extract_strings.js",
     "po2json": "node scripts/convert_po2json.js"
   },