FormItem to capture Digital Signatures

[ESutherland]

I created this, thought somebody else might find it useful - or perhaps iso would want to add something like this to a future iteration.

https://github.com/stackoverfloweth/ISC_Signature

https://jsfiddle.net/av0e4ck9/

[Isomorphic]

Thanks for contributing this!

In case you missed it, we've actually gone ahead and blogged about it.