Merge pull request #1 from JeroenMathon/Development

Development
Remastered the menu class.
It should be more object orientated now.
Fixed exercises.
Changed question array to vector.
Fixed menu glitch
Merge remote-tracking branch 'origin/master' into Development
Updates some files
Added addition exercise
Merge pull request #2 from JeroenMathon/Development

Development
Removed project files
Merge pull request #3 from JeroenMathon/Development

Removed project files
Added cmake and installer
Merge pull request #4 from JeroenMathon/Development

Added cmake and installer
Merge pull request #5 from JeroenMathon/master

Update Testing