backend, frontend: messages refactoring (huge commit, not finished): /!\ database schema has been modified, do a backup before updating message have been refactored, here are the main changes: - languages are now handled - all messages have an uid (internal to SàT) - message updating is anticipated - subject is now first class - new naming scheme is used newMessage => messageNew, getHistory => historyGet, sendMessage => messageSend - minimal compatibility refactoring in quick_frontend/Primitivus, better refactoring should follow - threads handling - delayed messages are saved into history - info messages may also be saved in history (e.g. to keep track of people joining/leaving a room) - duplicate messages should be avoided - historyGet return messages in right order, no need to sort again - plugins have been updated to follow new features, some of them need to be reworked (e.g. OTR) - XEP-0203 (Delayed Delivery) is now fully handled in core, the plugin just handle disco and creation of a delay element - /!\ jp and Libervia are currently broken, as some features of Primitivus It has been put in one huge commit to avoid breaking messaging between changes. This is the main part of message refactoring, other commits will follow to take profit of the new features/behaviour.

This directory contains files related to SàT but not directly used by it.

* file _jp:
    This is the completion file for zsh. To use it, you need to have it in a path accessible in your fpath variable, and to have completion activated. This can be done by the following commands in your .zshrc:

### .zshrc completion ###
fpath=(/path/to/directory/with/_jp/ $fpath)
autoload -U compinit
compinit
### end of .zshrc completion ###

    Then, you should be able to complete a jp command line by pressing [TAB].

* org.goffi.SAT.service:
	This file is used by D-Bus to know how to launch the backend, you have to put in in D-Bus services dir (usually /usr/share/dbus-1/services)