test
add carsim/hard dir, S1 car only new
carsim hard, gui rad btn
new graphs type, all tires pacejka vis and edit

Conflicts:
	source/vdrift/settings.h
shorter, fix
tire graphs range sld on gui, pow x
scrollview sizes adjust
tire circles scale gui sld, tab Graphs2
tire circles scale gui sld, tab Graphs2
Merge branch 'tires' of github.com:stuntrally/stuntrally into tires

Conflicts:
	data/gui/Game.layout
upd nsi, gui
upd gui, tweak surface tab, transl fix1
load user surfaces.cfg and tires
surf and tire lists (game tweak wnd), new params in surface friction (test,wip)
Merge branch 'tires'
Merge branch 'master' of github.com:stuntrally/stuntrally