Remove package.json:scripts.test

The spec directory was removed with eefdf68 / bea01b3, but this file was not updated
CB-7362 Add Please run npm install from this directory code
CB-7363 Do not insist on precise version of cordova-lib
 Updated version and RELEASENOTES.md for release 0.22.5
updated version to 0.22.6, bumped cordova-lib dep version
updated version to 0.22.7-dev
updated Release notes