Javi - MUT-005 - Reading cards from JSON.
Javi - MUT-005 - Added firebase support and new gulp tasks.
Javi - MUT-005 - Changing DB url, adding push and delete support.
Javi - MUT-005 Adding date and cathegory submision to the cards.
Merge pull request #6 from alelr36/MUT-005

Mut 005