Update versions, install cron and sqlcmd, avoid hardcoding versions in the hosted tool cache, fix environment variable typo

Fix standard tags

Hopefully this will fix the Hosted Tool Cache

Include Node in the standard image and add uuidgen

Add Dockerfile versions for all languages

Add Java version

Fix powershell and Docker

Add .NET Core image

Add tags

Start refactoring into separate tags

Improve Dockerfile and add start.sh

Add another goal

Initial commit

Initial commit