Twenty Ten: Rename to appease the theme directory gods, version bump, and new...

Twenty Ten: Rename to appease the theme directory gods, version bump, and new description from lancewillett and iandstewart. fixes #14298.

git-svn-id: https://core.svn.wordpress.org/trunk@15413 1a063a9b-81f0-0310-95a4-ce76da25c4cd