Merge pull request #1 from ggrossman/working_ubuntu

[Work In Progress] Fixed compile errors, CB is working on Ubuntu 12.04
Update README.md
add make clean, ENVPAID
Update README.md
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Update README.md
Update README.md
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Merge branch 'master' into working_ubuntu

Conflicts:
	cb/cb.h
	cb/makefile
	cf/cbconfig