sparsegraph - sparsegraph: 1.

Log Message:
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1. Adding LICENSE and README files.
2. Prepending license information to all source files.
3. Fixing a major bug in the binary search algorithm I just added to
sparsegraph_neighbors -- OUCH!

Modified Files:
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sparsegraph:
Makefile (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/sparsegraph/sparsegraph/Makefile.diff?r1=1.1.1.1&r2=1.2)
sparsegraph.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/sparsegraph/sparsegraph/sparsegraph.c.diff?r1=1.2&r2=1.3)
sparsegraph.h (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/sparsegraph/sparsegraph/sparsegraph.h.diff?r1=1.2&r2=1.3)
sparsegraph.sql.in (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/sparsegraph/sparsegraph/sparsegraph.sql.in.diff?r1=1.1.1.1&r2=1.2)
sparsegraph_impl.cpp (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/sparsegraph/sparsegraph/sparsegraph_impl.cpp.diff?r1=1.1.1.1&r2=1.2)

Added Files:
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sparsegraph:
LICENSE (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/sparsegraph/sparsegraph/LICENSE?rev=1.1&content-type=text/x-cvsweb-markup)
README.sparsegraph (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/sparsegraph/sparsegraph/README.sparsegraph?rev=1.1&content-type=text/x-cvsweb-markup)