removed unnecesary updates while pressing any key
improved automatic data reloading
filters are now saved between sessions using localStorage
fixed small inaccuracy when calculating the canvas dimensions
fixed transitions when using the keyboard for navigation
loading errors while doing the automatic updates are now silent to the user
fixed css for non moz/webkit browsers
changed test server to webfsd
a quadtree is now used for selecting the frame objects
show movements of troops also present in the previous snapshot