Resource nested hash support

[artempartos]

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.

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 sporkmonger/addressable#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 (sporkmonger/addressable#84) and
minor version of Weary is higher than 2.2.