cloning site empties seo data of objects
clone clears out site seo now as well
clone site clears seo icons
clone seo and icons set to empty object
clone site objects seo set to empty object
Merge pull request #77 from ebaker/clone-seo-clear

cloning site empties seo data of objects
Merge pull request #76 from SJAnderson/master

Dobi: cache:warm limit to 15 request max
move helper functions to util script
create utils file, create cache:reset command. ref lessthan3/packages#4127