kinetic demo
fieldWidth in demo
kintetic grapher
fix count  preloaded images
map presenter and grapher render
viewport presenter
remove raphael library
adjust field presenter
draw viewport layer after drawn fields
begin of refactoring
add rack-coffee
viewport model
api caller, preload images, fetch init,
render fog
checkBoundaries, center viewport
render fields
add zoom factor when dragging
HQ, Pawn, ImagePresenter
pawn dragging
update map when moving pawn