5953 dodge npm link error

@walpurgisriot @fishyfriend @jake-miles 

This PR fixes a problem with sharing contract objects between 2 instances of the library, which can occur when using `npm link`.
No so. Here `contractType === 'object'`


On Mon, Aug 25, 2014 at 11:06 AM, Jake Miles <notifications@github.com>
wrote:

> In contract.impl.js:
>
> > @@ -358,6 +358,7 @@ function Contract(name, // name: the name of the contract as it should appear in
> >  }
> >
> >  Contract.prototype = {
> > +  signal: "M`okY\\xtXVmQzw5dfjjhkDM|Z9@hGy",
>
> Javascript types carry their type as the return value of typeof. For
> example,
>
> var contractType = typeof (new Contract ("0", value(0)));
> var isTypeContract = function (x) { return typeof(x) === contractType }
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/sefaira/rho-contracts.js/pull/8/files#r16660124>.
>