adds support for Post.any?/Post.empty?

lib/spyke/relation.rb

@@ -6,7 +6,7 @@ class Relation
 
     attr_reader :klass, :params
     attr_writer :params
-    delegate :to_ary, :[], :empty?, :last, :size, :metadata, to: :find_some
+    delegate :to_ary, :[], :any?, :empty?, :last, :size, :metadata, to: :find_some
 
     def initialize(klass, options = {})
       @klass, @options, @params = klass, options, {}

lib/spyke/scoping.rb

@@ -6,7 +6,7 @@ module Scoping
     extend ActiveSupport::Concern
 
     module ClassMethods
-      delegate :where, :build, to: :all
+      delegate :where, :build, :any?, :empty?, to: :all
 
       def all
         current_scope || Relation.new(self, uri: uri)

lib/spyke/version.rb

@@ -1,3 +1,3 @@
 module Spyke
-  VERSION = '1.7.1'
+  VERSION = '1.7.2'
 end

test/relation_test.rb

@@ -12,6 +12,13 @@ def test_all
       assert_equal 'meta', recipes.metadata
     end
 
+    def test_any?
+      endpoint = stub_request(:get, 'http://sushi.com/recipes').to_return_json(result: [{ id: 1 }])
+
+      assert_equal true, Recipe.any?
+      assert_requested endpoint
+    end
+
     def test_scope_independence
       endpoint = stub_request(:get, 'http://sushi.com/recipes?query=chicken')
       wrong_endpoint = stub_request(:get, 'http://sushi.com/recipes?query=chicken&page=1')