Added artfiles for Salt Shaker enemy

Illustrator files created: template_snail_characters.ait is a template
ai file for future enemy creation and saltshaker-ver01.ai is the wip
file for the Salt Shaker enemy. Also created a mockup for team review of
the Salt Shaker enemy.
-Travis
Created Salt Shaker Sprite

Added salt shaker enemy to snail-sprite-template. Created an idle sprite
for the salt shaker enemy that is 128px by 128px.
-Travis
Added to arc_saltdropper

Added in the salt shaker guy's sprite, updated collision collider, and
made minor changes to his py_script.
-Travis
Merge branch 'salt-shaker-branch'

Conflicts:
	gamefiles/Content/__pycache__/py_ghosting.cpython-32.pyc
	gamefiles/Content/__pycache__/py_globalVariables.cpython-32.pyc
	gamefiles/Content/__pycache__/py_pickupSettings.cpython-32.pyc
	gamefiles/Content/__pycache__/py_saltDropper.cpython-32.pyc