Possible fix for #4

[jcward]

Reasonable hack: makes all hashes get Hash suffix instead of Array suffix
Makes stringify {} output []Hash instead of []Array.

[samfrench]

If we were to do this then I would suggest gsub, as this only replaces the first occurrence:

Crimp.stringify({foo:{}}).sub(/Array$/, 'Hash')
=> "[\"fooSymbol=>[]Array\"]Hash"

But not sure I agree with fixing this. I commented on #4 about this.

[jcward]

Replacing only the Array at the end is the intent (hence /Array$/).

This PR observes that parse_array and parse_hash both return [<some recursive content>]Array -- and it merely says for parse_hash, let's replace that trailing Array to make it [<some recursive content>]Hash. A recursive gsub would modify the <some recursive content> be destructive to the recursive nature of the stringification.

Again, I don't care what you do with this PR, I'm just putting it out there for others consideration. Cheers!