Update French Translation



See merge request !151

Collapse by default optional parameters

To be cherry-picked on `release`.

See merge request !147

Allow to remove date in the poll creation wizard

CF MR !140 

To be cherry-picked in `release`.

See merge request !146

Correcting comment typo in file header

Fix #190 

See merge request !144

Disabled autocompletion on the datepicker input

Avoid autocompletion of the datepicker input field to occur
(Step to reproduce : Long click on a datepicker input field)

See merge request !141

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