Correcting line endings, fix the constant name, move hook_requirements() in .install, added t() in tpl.

New page with nice theme thanks to Marc Hanot.
Various changes in the error messages display.
Notice: Variables changes in the template, you need to update!

Fix a bug when features is enabled, the language_url_rewrite() is not called so, the links are not rewritten. Including the file manually.

Pass the module through Coder, enable more validation checks in the admin settings page, change the way the switch engine is working, doxygen compliance.

Improved admin interface, better error checking, better error messages, module files splitting, fix links in template