Allow customized template

[coudot]

This adds the $custom_tpl_dir option in configuration which can be used to create a customized template.

You can just override one or two templates files by copying them to the custom template directory and adapt them.

[necarnot]

Hi @coudot ,

After having upgrade from 1.7.2-1 to 1.7.3, I also integrated this PR, doing it this way :

• I'm (docker-)building it at every release, so I merged this PR
• My compose.yml contains this kind of volume binding : - ./config/templates_custom/:/var/www/templates_custom
• In ./config/templates_custom, I only copied then changed the index.tpl file
• After a rebuild with the latest 1.7.3, I'm using it and everything is working fine : the customized index.tpl is used.

Thank you Clément!

[coudot]

Thanks a lot for the feedback!