[enhance] file: added fold_dir_rec function
[enhance] pack: Complete directives. New features. Bug fixes.
[fix] mongo: Complete Socket binary_* functions. Move mailbox into so…
…cketpool. Debug output to ML.debug.
[fix] socket: Missing file update for socket native backend.
[fix] lib: Updates after rebase. Reorganise Binary in Pack. Added bin…
…dump. Patch for scheduler loop.
[feature] mongo: Manual import of prototype opa-based mongo driver.
[enhance] file: added mkdir function
[enhance] file: added write function to File, renamed bslFile of_stri…
…ng function, added doc, updated changelog
[doc] file.opa: mimetype not working on nodejs
[feature] file,notification: bind nodejs file notification
[feature] file,readdir: read directory content
[doc] lib: some AGPL copyright were remaining
[doc] lib: changed files headers to MIT license
[enhance] all: more file reorganisation + library -> lib