Correcting comment typo in file header

Fix #190 

See merge request !144

Update, fix and add breton translation to correct branch



See merge request !143

Added escaping for install in config.tpl

In the installation process, string like the one below should be a valid application name (or DB password).
> Framadate c'est vraiment super ! "Datez" comme vous voulez \o/

It missed some escaping for single quote (') and backslash (\\), resulting in PHP parse errors.

It should be cherry-picked to the `release` branch too.

See merge request !136

* Now works on windows servers
* Byebye .po/.mo, welcome .json
* Byebye old gettext library, welcome o80-i18n

First: Block the poll (no more modification)
Second: Delete the poll 60 days after the expiration date (configurable)

(cherry picked from commit 16da5370)

Conflicts:
	app/inc/constants.php.template
	app/inc/init.php

+ Use this system to migrate from 0.8 to 0.9 (WIP)