Allow topology to be automatically extracted.
Rename to topojson.neighbors.
Added option to keep certain or all feature properties
Simplify test script definition.
Allow multiple options to topology creation.
Remove cruft from test.
Better tests and fix some bugs!
Add a few more interesting tests.
Merge branch 'topology' of https://github.com/jasondavies/topojson
Server-side code now can use client-side code!
Merge branch 'master' of https://github.com/interactivethings/topojson

Also added the ability to rename properties, e.g., -p foo=bar.

Conflicts:
	bin/topojson
	lib/topojson/topology.js
Bump version numbers.
Update README.
Remove superfluous word.
Update README.
Restructure README.
Update README.
Fix relative link.
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