Merge branch 'master' into merge-master-to-examples

* master: (28 commits)
  Rename CollectionSerializer to PaginatedArraySerializer
  Add be_a_meta_represantation matcher
  Use ``` for code formating
  Refactor collection_serializer
  Git pull
  Remove controller specs
  upgrade rails to 4.1.5
  Remove db:test:prepare from bin/bootstrap script
  Remove useless serializers description from README.md
  Add Serializers part to README.md
  Update README.md
  Fix redundant curly braces around a hash parameter
  Check hash with meta on collection serializer instead of using custom matchers
  Filter gems in Gemfile by groups
  Use simple array on collection serializer instead users
  Use allow syntax instead stub
  Add be_a_meta_representation matcher
  Add name for subject in sessions spec
  Add collection serializer spec
  Remove condition from CollectionSerializer
  ...

Conflicts:
	spec/controllers/v1/sessions_controller_spec.rb
Merge pull request #146 from fs/merge-master-to-examples

Merge master to examples
Merge branch 'examples' into implement-pagination-examples

* examples: