fix a bug which cause process exit

access item with index i cause a "ReferenceError: i is not defined"
error wich finally make process exit
Merge pull request #1 from liyangdal/fix-feedback

fix a bug which cause process exit
Merge pull request #1 from jweyrich/master

merge original
Merge branch 'master' into multi-ios-key

Conflicts:
	index.js