Created base for BlockTrader
Still fixing assets...
Did textures and block rotation
Did BlockTrader interaction
Finished GUI buttons and pages
Setup trade handlers, instances and database
Done buy/sell lists for trades page (populated with random examples)
Added logger for the mod
Added client/server check function to proxy
Added a class to hold all mod settings
Added packet handler
Added packet to change server-side ContainerTrader page
Attempted to add player inventory to GuiTrader's sell page (broken!)
Cleaned out unnecessary code from GuiTrader
New creative tab to hold blocks and items
Reformatted for gradle
Economy item profile database done
Setup global & local configs
Database save/load from file done
Removed redundant handler init functions
Fixed major issue inventory with ContainerTrader
Cleaned out redundant packet handling
Removed unused classes
Added BlockPostbox (currently acts as a chest)
Fixed NPE bug when unloading worlds.
Minor ID switch
Corrected sell slot position
Merge branch 'Trade-System-Branch'

Conflicts:
	economy_assets/assets/blocks/block_place_holder.png
	economy_assets/assets/economy/textures/blocks/block_place_holder.png
	economy_assets/assets/economy/textures/gui/gui_blank.png
	economy_assets/assets/economy/textures/items/item_place_holder.png
	economy_assets/assets/gui/gui_blank.png
	economy_assets/assets/items/item_place_holder.png
	org/randomcoders/economy/core/proxies/CommonProxy.java
	src/main/resources/assets/economy/textures/blocks/block_place_holder.png
	src/main/resources/assets/economy/textures/gui/gui_blank.png
	src/main/resources/assets/economy/textures/items/item_place_holder.png