Worked on the graphics-component & added a contact listener class.
Modified gitignore to ignore .swt files & edited the cmake script
Fixed a fail in the .gitignore (it was swp and not swt ^^)
Moved the contact listener to the server & created a physUpdate package
Added a onScreen function to the playerManager (Server)

The function returns a vector (strings) of all players. This will be implemented to the sendPcket function of the packetSender, so packets can be sent to multiple clients through one function call.

Also fixed some small bugs (mostly typing errors) and made the whole thing compile again.
Integrated the Entity-System with the client, integrated the multiple-reciever packet sender
Modified .gitignore (ignore .swo files), integrated the entity-system with the server
Started working on the Physics Manager for the Server.