Ehcp for Ubuntu 20.04 first Beta ready

You may download and test Ehcp 20.04 for Ubuntu 20.04 from url:
(See usual download instructions)

This is first beta release for Ehcp. Please try and report any issues. Do not directly install to production servers, not all functions tested.

Actually, there are little changes from previous versions. Only a few Ubuntu 20.04 adaptations. No major changes. Some features and nginx/webserver configurations are improved.

Summary of changes/improvements:
* Rewriting nginx and apache2 configuration parts.
* ssl/https fixings
* Carry webserver config files into relevant subdirectories
* Code Cleanup
* timeout for emails and domains.
* First Ubuntu 20.04 version ready