Changes 13-01-13 @ 17:52

> removed the function init_vector() as it was uneccessary as the vector
`displacement` was not being used any more
> Annotation added to "main.cpp"
> Annotation added to "seatdisplay.cpp" up to and including the function
`seatdisplay::seatdisplay()`

Specifics to be completed
> Add the cancel seats function to program