GitLab

+ the implicitly bound variable in type invariants
  is now called "self"

Avoid usage of minipage (to please hevea) and fix some alignment and newline issues in the documentation of the syntax changes.

+ rename metas:
    "realized" => "realized_theory"
    "remove_type_symbol" => "remove_type"

Subliminal message: the main difficulty was the use
of the API for programs. In particular, I added a first ocamldoc
documentation for [Mlw_module.add_pdecl], explaining that it may raise
exception [Not_found]. The parameter [wp] should be documented too,
I put [true], hoping it is OK.
Generally speaking, [.mli] files in [src/whyml] lack A LOT of
ocamldoc documentation