Can activate password
Only display the "password" field if this option is activated
Updated README
Send feedback to the visitor if the password isn't correct

Now the visitor can discriminate between a bad password and an unreachable server.
Merge pull request #13 from AlexFaraino/master

add MIT license
Add password: fixing conflicts
Can use qr code
Updated README
Timestamp logs

Useful at least for devs, to ensure the server rebooted and took into account
the last modifications
Take config.js.template into account

Useful after an update which adds config options:
Say we add config.some_option. If someone updates the sources, he will have this
option in config.js.template, but not in config.js.

Currently, this config.some_option would hence end up to undefined.

With this dev, this config.some_option would have the default sensible value
provided by the template file.
And it's of course still possible to override any option in the local config.js
Merge pull request #14 from gturri/qr

Can use qr code
Merge pull request #16 from gturri/util

Utils
Don't hard code Fabelier's name
Merge pull request #15 from gturri/custom

Don't hard code Fabelier's name