Refactoring the system module templates

During the period that 1.4 is being finalised, I came across the Bulma CSS framework and i wanted to try it to see if it would be a good fit to develop a new, more modern, admin theme. The work is not yet done, but during that initial search I identified that in fact most of hte templates for the ACP part of the system module simply didn't work. It is possible to change the general appearance of your ACP with a theme_admin.html file, but the specific contents of the different ACP screens are locked.

Bummer.

The reasons were two-fold :

• in many places, the template file was hardcoded to the one in the module, and not the one in the theme
• where the theme template was referenced, the reference was using a path structure in the identifier, and that didn't work with the templating engine (smarty 2 at this moment still).

As a result, there are 2 PR in the 1.4.0 beta release that fix this : I changed the location and the name of the templates in the system module, in such a way that all the templates, ACP or user side, all live in the same folder. I also adapted the code to reference the theme template.

During that work, I came to realise that there are still some parts of the system module ACP that are hard-coding HTML (and some ugly HTML constructions, at that). I'm currently trying to refactor the avatar section into clean code and a separate template. That shouldn't keep a new version from being published, because it will not introduce new functionalities or fix bugs, but it's a small step in cleaning up the system module.