NEW: ParkingLotController basic functionality

* Finished funcionality of LoginController
* Created ParkingLotController, basic methods and listener for starting
Parking Lot event
* Updated ParkingLot by adding new attribute loggedUser
* Renamed two buttons in ParkingLotFrame
Merge branch 'master' of git@github.com:apelttom/ParqueoPublico.git

Conflicts:
	src/main/Main.java
	src/model/ParkingLot.java

* Solved conflicts with Adrian changes. Piece of cake :-P
=Quote: Never learn something, what you can find in books. -Albert Einstein=