update README
add box_boom.nanim
Integrate boom box explosion
add new sprites, one level (t1/lvl04) and updates
Error in master.tsx size isn't change to use the new image pack
Fix #59
I am stupid
Change main menu button position.
Correct big error catch ned systeme
Update natir crédits.
Add blank sprite at end of boom animation, Fix #69
Solve issue #73, but new bug spotted.
Merge origin/master
add ProFontWindows