grantfu - grantfu: support roles, USAGE ON SEQENCE.

Log Message:
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support roles, USAGE ON SEQENCE. Also use special section for GrantFu vars.

Modified Files:
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grantfu:
grantfu.py (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/grantfu/grantfu/grantfu.py.diff?r1=1.1.1.1&r2=1.2)
test.cf (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/grantfu/grantfu/test.cf.diff?r1=1.1.1.1&r2=1.2)
test.exp (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/grantfu/grantfu/test.exp.diff?r1=1.1.1.1&r2=1.2)