initial commit - navigation
Merge branch 'master' of https://github.com/cgcostume/cgsee into navigation_1_4
remove some qt classes
add arcball code
 #1 #4 connect navigation to mouse events
fix capture only mouseevents from canvas #1 #4
it's rotating... somehow #4
rotating better #4
Started to implement FlightNavigation, added macro to switch navigation modes
#1, create method stubs for flight
#1, added keybinding for Flight
#1, simple flight navigation implemented, wasd shift space control
#1, adjust speed of movement
#1, adjust tilt  of camera via arrrowkeys
#1, basic yaw pitch roll functionality
#1, refractoring: comments, better variableNames
#1, added movement toward the center of the view
#1, adjust keybindings

w, s for pitch
a, d for yaw
q,e for roll
#1, implemented that speed of movement increases while button is pressed
#1, zoom function/adjust fov via mousewheel