VRAM constants.
Use VRAM constants where applicable.
Label and comment BattleTransition
Dust off the makefile and prepare to build Yellow.
Remove redundant dimensions in image filenames.
Fix IsDungeonMap comments
Merge branch 'master' of https://github.com/yenatch/pokered

Conflicts:
	engine/battle/1c.asm
Split out joypad and overworld code from home.asm.
Recomment some copy/video functions in home.asm.
Split the text engine out of home.asm.
Clean up bg map and palette fade code in home.asm.
Use rgbasm -h to use halt without nops.
Remove duplicated data
Relabel a few missed map scripts and TheEndTextString
Split more code out of home.asm.
Split out joypad code from main.asm.
Explicit sections for pics, sprites and misc graphics.
Merge remote-tracking branch 'danny/master'
Comment SGB packets.
Space out monster constants to make gaps clearer.