fan out submenus & back

pending: size & recenter properly on iPhone
adding iPhone resizing
take into account device orientation

pending - offsets getting smaller every time menu opens
broken: change orientation before closing menu
refactoring
rotate correctly
adding reveal library
fixed rotation
added Podfile (to this branch)
added Reveal framework (ignored?)
fixed paths
rotation - again
make menu text changeable
tweaking submenus
tweaking animation
fixed calling of action block
fixed iPhone sizing
plain animation
introduced wrapper view to fix move animation
fixed landscape flip
fixed resizing main menu and submenus
fixed submenu positioning
fixed submenus