Open
Description
In the current state of the project, extensions are compiled into ohow.byte alongwith the compiler.
Thus, if some HOW user needs to add a custom wikicréole extension, they will need to edit the sources of the project and re-compile it.
It would be better if instead, the user could use an opam library, say How_ext which provides the necessary OCaml interfaces and parsers for building an extension. The user would then compile its extension alone, and when they run ohow, the binary dynamically links to itself the user extension (probably a .cmo) and the magic happens...
Btw we could externalize the Ocsigen-specific extensions out of this project.