[fix] better implementation of has_element
[doc] generating docs
[fix] fix syntax extension for 'a type
[new] client lib to use with js_of_ocaml
[fix] revert client lib to dummy plugin. Error when generating type_mli
[fix] replace the StringMap by a list since in some case the insertion order must be respected (i.e. orderby)
Merge pull request #9 from msimon/master

Fix syntax extension & StringMap is now a assoc List