Simplified schema to focus on user and node.
Now possible to have sqlite via ODBC and/or mysql support, and select using configuration file.
Updated demo example.
Reviewed configuration related feature.
Renamed JSON_CONFIGURATION as APPLICATION_JSON_CONFIGURATION_HELPER to avoid confusion.
Updated CMS_DEFAULT_SETUP to use configuration from cms configuration library.
Added {CMS_API}.module_configuration (a_module_name: READABLE_STRING_GENERAL; a_name: detachable READABLE_STRING_GENERAL): detachable CONFIG_READER to help getting access to configuration of a module (for now, only json and ini are supported, but in the future, this could support database layer directly)
Added CMS_HOOK_BLOCK_HELPER to reuse the template_block (..): ... function.
Cosmetic
Removed CMS_SETUP.smtp_server since for now, there is no need for such general setting.
Add header line "X-ServerEWF-App: CMS" as a simple way to know if request is processed by the CMS.
