Remove unused AppVeyor configuration (#6840)

The AppVeyor configuration appears to be unused - this project is not
connected to AppVeyor.

After deleting the AppVeyor config, the JSDoc config was the last thing
in the `development/tools` directory. That felt a little silly, so I
moved it up to `development`.

development/tools/README.md

@@ -1,15 +0,0 @@
-# Development Tools & Configurations
-
-This folder contains configuration files which are used by the the different
-development-tools, like e.g. JsDoc.
-
-
-## Appveyor
-
-
-https://www.appveyor.com/docs/build-configuration/#alternative-yaml-file-location
-
-Withtin the configuration, point to a weblocation of a txt config file:
-
-https://ci.appveyor.com/project/lazaridiscom/mm-vault/settings
-https://raw.githubusercontent.com/lazaridiscom/mm-vault/master/dev/tools/appveyor.txt

development/tools/appveyor.txt

@@ -1,21 +0,0 @@
-# Test against the latest version of this Node.js version
-environment:
-  nodejs_version: "8"
-
-# Install scripts. (runs after repo cloning)
-install:
-  # Get the latest stable version of Node.js or io.js
-  - ps: Install-Product node $env:nodejs_version
-  # install modules
-  - npm install
-
-# Post-install test scripts.
-test_script:
-  # Output useful info for debugging.
-  - node --version
-  - npm --version
-  # run tests
-  - npm test
-
-# Don't actually build.
-build: off

package.json

@@ -5,7 +5,7 @@
   "scripts": {
     "start": "gulp dev:extension",
     "dist": "gulp dist",
-    "doc": "jsdoc -c development/tools/.jsdoc.json",
+    "doc": "jsdoc -c development/.jsdoc.json",
     "publish-docs": "gh-pages -d docs/jsdocs",
     "start:test": "gulp dev:test",
     "build:test": "gulp build:test",