client-sessions v0.5

It rather bothered me that client-sessions required a native module, but it used a Proxy so as to only re-encrypt the cookie if it a property changed. Stuck 30,000 feet in the air unnaturally, I spent some time removing the usage of the Proxy, and use getters and setters instead.

I also mopped up some bugs while I was at it.

So, v0.5 is live, works better, and such!