Updated README
Updated README

New owner organization and pointing people to Sean for direction. cc @seancribbs

chef/webmachine,Webmachine/webmachine,joedevivo/webmachine,lemenkov/webmachine,sdebnath/webmachine,liuhongchao/webmachine,campanja/webmachine,tsloughter/webmachine,chef/webmachine,basho/webmachine,basho/webmachine,Webmachine/webmachine,campanja/webmachine,sdebnath/webmachine,tsloughter/webmachine,joedevivo/webmachine,joedevivo/webmachine,liuhongchao/webmachine,lemenkov/webmachine