Fix Makefile: .map and .sym
The Makefile previously made the files '.map' and '.sym'
instead of 'poke[red/blue].map' and 'poke[red/blue].sym'
Update INSTALL.md
- git no longer requires gettext by default (needed for "git submodule init")
- Windows doesn't have sudo
- pip mysteriously will not install png.py
Fix file include
Merge branch 'master' of https://github.com/dannye/pokered