display bullet circle
use ocsfml instead of graphics
limit framerate
adapt Makefile
interpreter skeleton
parse labels
Merge branch 'label' into gfxinterp
next_state
interpreter state
indent
Merge branch 'label' into gfxinterp
install ocsfml
install libsfml-dev
install boost
pick SFML from PPA
merge X and XRef
continuations
Merge branch 'mergerefs' into gfxinterp

Conflicts:
	tests.ml
more continuations
Use playdeb