Add autoloader and start migrating functions.php to classes

[irongulp]

No description provided.

[scrobbleme]

The package should start with a prefix like Webcalendar, or k5n\Webcalendar to avoid possible future conflicts with too generic namespaces. App\Helper is quite simple and there is a chance that it already is used...

[irongulp]

The package should start with a prefix like Webcalendar, or k5n\Webcalendar to avoid possible future conflicts with too generic namespaces. App\Helper is quite simple and there is a chance that it already is used...

This isn't a package. Setting a namespace for the main application is needed to migrate Webcalendar to an OO app. The namespace proposed isn't going to conflict with anything.

[craigk5n]

This change would be best in a separate PR. Additionally, I prefer to not use autoload to better support offline installations and to avoid adding the vendor directory to the git repo.