Update Makefile

Change Windows build targets to include downloading the love files for Windows.
Fix fonts wonkyness in shopping and debug
Allows dropping of potions
Fix typos
Warn if node or inventory item can't be found
Check if consumables exist before adding

Fix #1685
Merge pull request #1677 from DaNiwa/potion_ref

Fix dropping of potions
Merge branch 'master' of github.com:hawkthorne/hawkthorne-journey into fix_unknown_nodes

Conflicts:
	src/items/item.lua
Merge pull request #1676 from DaNiwa/fonts_again

Fix Font Problems
Merge pull request #1586 from blha303/patch-1

Update Makefile
Merge pull request #1684 from hawkthorne/fix_unknown_nodes

Warn if node or inventory item can't be found