allow cheerio.load work with DomHandler
accept dom of DomHandler to cheerio.load
fix 'content undefined'
update version
revert version change
rename 'strOrDom' to 'content'; use _.isString
Merge branch 'load-by-domhandler' of https://github.com/nleush/cheerio into load-by-domhandler
use shortcut htmlparser.parseDOM
Merge pull request #424 from nleush/load-by-domhandler

Allow load cheerio using existing domhandler (not only string)