Resource nested hash support

I use Weary for my client. In some my API i use ransack and often i have a nested hash in params. For example i have rest people index api, where three hash keys. 
```ruby
get :people, "/api/people.json" do |resource|
      resource.optional :q, :per_page, :page
end
```
Here page and per_page integer option, and q - ransack search nested hash.
for example q[description_cont] or q[year_eq].
But with Weary::Resource i have error (test illustrate it)
```
 TypeError:
       Can't convert Hash into String.
```
It's famous addresable issue https://github.com/sporkmonger/addressable/issues/36 which fixed in addresable 2.2.7 and broken in addresable 2.3.
I decide fix this bug here, because  addresable maintainer doss't want do it (https://github.com/sporkmonger/addressable/pull/84) and
 minor version of Weary is higher than 2.2.