Rename of "htmlApp" to "Web App"

[Gert]

I will rename "htmlApp" to "Web App". Because it seems that by now the term "Web App" is well known for HTML/Javascript applications.

I will do that renaming step by step, as I find time.

Changing the name will help me to forget the disappointing support on the app development in the past

I recently did spent some effort to develop a useable user interface for the Web App and I will release that very soon

Regards,
Gert