Shifted the panda skeleton head for issue #3954. Had to open and save quest_atom1.png becuase I was getting an error running 'grunt sprite'. Committing the generated spritesmithX.png files in dist as well.
Resizes pet-dragon-hydra.png

        Also removes commented out reference in backer.css
Merge branch 'issue-3954' of https://github.com/ebiagogo/habitrpg-shared into ebiagogo-issue-3954

Conflicts:
	dist/spritesmith0.png
	dist/spritesmith1.png
	dist/spritesmith2.png
	dist/spritesmith3.png
	dist/spritesmith4.png
	dist/spritesmith5.png
Compiled panda skull image to spritesheet
Merge branch 'resize-pet-dragon-hydra' of https://github.com/bcseda/habitrpg-shared into bcseda-resize-pet-dragon-hydra

Conflicts:
	img/sprites/spritesmith/stable/pets/Pet-Dragon-Hydra.png