re-order some crispness menu items
disable WiggleFix for the time being

more crashes occurred in complex levels and
I cannot wrap my head around where the overflow happens
upgrade renderer to use 32-bit integer math

fixes overflows related to the WiggleFix, so this can be enabled again
\o/

Thanks to kb1, RjY and Quasar for pointers to the relevant code
changes!
fix laser dot drawn behind view plane
better logging