convert string to array ie7 workarround

[jfromaniello]

This is a workarround for IE7 where strings can't be used as arrays directly.

[buschtoens]

Thanks, I am going to test that in old IEs and merge if it works.

But LGTM in general.

[jfromaniello]

Did you tested? I'm using this in very big project in production since I made the pull request.

I'd like to point to the official release.

Thanks in advance

[jfromaniello]

I updated into a new pull request. Thanks