Add screenshots dir to fix_perms in the Makefile
Fix perms on screenshots
Add placeholder icons for 'life' and 'gold'
Better HUD using canvas2d text rendering

Drastic changes to the HUD, looks a lot better now. Also added placeholder
icons for gold and life, no icon yet for the timer though.

Changed the tile size to 6 to make the levels a bit easier to negotiate. Some
of the LD commenters had said that it was too hard to find the exit.
Update the todo.txt
Removing unused screenshot file

Got rid of first.png, which is superseded by first.jpg.
Merge remote-tracking branch 'origin/master'