Updating commenting for new onItemContentChange event.
Thanks to James Smith @jls for his initial pull request https://github.com/enyojs/onyx/pull/112 for working on getting this in.
Enyo-DCO-1.1-Signed-off-by: James Smith james@airspringsoftware.com
Enyo-DCO-1.1-Signed-off-by: Steven Feaster <steven.feaster@palm.com>