Temporary commit, version 2.1

Controllers and actions will inherit class giController
the main initializer will be an object of class giInitializer,
better MVC implementation, better routing, better security (linked to
the routing).
The classic « pages » plugin will not be supported anymore as
controller classes will be mandatory.
Merge pull request #14 from AnnoyingTechnology/2.1-deep-revamping

Temporary commit, version 2.1