added sprites to lab. fixes nodes.
this gives support for dropping projectiles and scrolls
allows droppping of throwing axe
stops picking up projectiles after thrown
Merge remote-tracking branch 'upstream/master' into drop-projectiles

Conflicts:
	src/inventory.lua

fixes arrow drop crash and throwing axe
Merge remote-tracking branch 'upstream/master' into drop-projectiles

Conflicts:
	src/inventory.lua

update to master
fixed missed merge issue
fixes throwing axe
Merge remote-tracking branch 'upstream/master' into drop-projectiles

Conflicts:
	src/inventory.lua

update to master
Merge pull request #1580 from CalebJohn/drop-projectiles

Allows dropping of projectiles
fixes spinning axe
Merge pull request #1629 from CalebJohn/spinning-axe

Fixes spinning axe
consumable only fall after dropping
scroll gravity
Merge pull request #1630 from CalebJohn/hold-up

Consumable defaults to not dropping
fix lab.tmx
Merge pull request #1548 from prene7/winterwonderland

added sprites to lab. fixes nodes.
Merge pull request #1638 from DaNiwa/lab

fix lab.tmx
fix
Merge pull request #1639 from DaNiwa/lab

fix