basic scene graph done
displayCallback() --> displaySceneGraph()
tried adding gitignore file to ignore debug dir
updated gitignore
updated gitignore
fixed untracked files
gitignore works now
checking if user/pwd still needed
testing pub/private key for authentication
testing usern/pwd
Added freeglut libraries
Restructured the project. Integrated server-client init.
Implemented simple move events communication between server and clients.

- Now able to run a server and many clients. Client can press W to move up
  or S to move down.
- Server stores messages in a buffer, process it every one second.
Merge pull request #1 from gotcha84/enrico

Merging into master: brand new project structure
.gitignore updated for new proj structure
updated gitignore
readded freeglut (why does this keep getting deleted)
Merge branch 'master' into mike-Y