remove obsolete TODO file
cleaup doc/cert
queue: hyperref
rm engine/gui.html
use same css for gui and queue
Fix dynamic title update (Thanks Colin Jermain)
add nice mumax header to gui page
mark v3.5.1 alpha
add regions.GetCell()
fix calculating kernel twice at cache init (Thanks Raffaele Pellicelli)
kernel cache: use buffered I/O (Thanks Raffaele Pellicelli)
update NREGION comment