As in issue #13 an example solution provided by @jrhe an implementation
of said feature has been created.
As per the discussion in the thread this is only a helper to be able to
reach the available options provided in the active_model_serializer gem.
usage is as follows:
```ruby
get '/some_path' do
collection = Collection.all
render collection, { meta: { current_page: 5 }, meta_key:
:pagination_info }
end
```
The return value would be:
`{ pagination_info: { current_page: 5 }, collection: [item, item] }`
If given without a `meta_key` it would return as:
`{ meta: { current_page: 5 }, collection: [item, item] }`
Any feedback appreciated.
@zph, @olleolleolle and @bjoska
There are some dependencies that are not required for this gem (eg.
tilt) that I'm removing. In addition some of the dependencies were only
necessary for development/test so I'm moving all of that into the gempsec and
making that clear there.
