added highscore feature
Merge branch 'master' of https://github.com/snowiow/SEP
small refactorings to highscore
finished highscore feature
added timer feature
Merge branch 'master' of https://github.com/snowiow/SEP

Conflicts:
	Zuul/Commands/GoCommand.cs
	Zuul/Zuul.cs
	Zuul/Zuul.csproj