Autoload Require.js config

[tracend]

The config generated for require.js on the server-side is expected to be loaded in main.js using:

require.config(KISSCMS['require']);

This, in combination with putting the initialization code in an init() method, although efficient may seem like a set of conventions someone can easily miss.

Ideally the require.js config file should be auto-loaded and the main.js free from all conventions.

[tracend]

The require config is not auto-loaded every time, both in DEBUG and production.

There's still the convention convention that a method named init that initiate the client. But if not available nothing fails now.