Matric class now template. Recoded from scratch.
Removed old matrix implementation file.
Added empty empty_list and type_list<>::cat examples.
New return syntax for functions everywhere and some subtle changes.
Changed licence from GPL v3 to LGPL v3.
Replaced empty_list by type_list<>.
Added type_list<Head, Tail...>::pop_back and examples for push and pop functions.
Merge branch 'master' of github.com:Morwenn/POLDER