Simulate login and logout.
Merge branch 'tema1' of https://github.com/dianaprajescu/proiect-idp.git into tema1
Simulate launch and drop offer request.
Merge branch 'tema1' of https://github.com/dianaprajescu/proiect-idp.git
into tema1

Conflicts:
	src/GUI/GUI.java
	src/GUI/Simulator.java
	src/Network/MockupNetwork.java
	src/app/Mediator.java