Merge pull request #92 from camallen/include_links

support has_an_belongs_to_many relations
v0.5.4
avoid n+1 queries in add_links when an association is eager loaded
Merge pull request #100 from rhec/feature/avoid_nplus1_queries_on_associations

avoid n+1 queries in add_links when an association is eager loaded
ruby version
v0.5.5
option to individually configure serializers

for example if you have multiple API versions, you want one group
to use prefix `/api/v1` other `/api/v2` and so on.

Global configuration allow only one prefix

remove debugging
Merge pull request #103 from equivalent/serializer_href_prefix

option to individually configure href_prefix in serializers
Merge branch 'master' of https://github.com/RestPack/restpack_serializer