Labeled Battle Center and Trade Center constants.
Install: Refer to pokeblue.gbc by its filename.
Readme: Builds both Red and Blue.
Rewrite the install instructions without init.sh.

Cygwin instructions return.
No more init.sh
Consolidate rgbfix options between Red and Blue.

Yellow and JP roms will take different options, but this is good for now.
Makefile: fix a syntax error in redrle
Makefile: nothing uses the ALL_DEPENDENCIES variable.
Rom checksums for use with md5sum -c
make compare: Use md5sum -c instead of comparing a base rom
Makefile: Don't group redrle with phony targets
audio: Include all constants
Let rgbasm handle undefined version constants.
Install: Command Line Tools for Xcode instead of the larger Xcode.
Removed hardcoded address. Labeled a few functions.
ledge tiles documented
Merge pull request #37 from Lin20/master

ledge tiles documented
Merge remote-tracking branch 'danny/master' into master
Merge remote-tracking branch 'huderlem/master' into master

Conflicts:
	main.asm
Merge remote-tracking branch 'origin/master' into master