fix the bug Followable#respond_to? and Follower#respond_to? actually …

…return nil when called with a nonexistent method.

lib/acts_as_follower/followable.rb

@@ -56,7 +56,7 @@ def method_missing(m, *args)
       end
 
       def respond_to?(m, include_private = false)
-        super || m.to_s[/count_(.+)_followers/] || m.to_s[/(.+)_followers/]
+        super || !!m.to_s[/count_(.+)_followers/] || !!m.to_s[/(.+)_followers/]
       end
 
       def blocked_followers_count

lib/acts_as_follower/follower.rb

@@ -98,7 +98,7 @@ def method_missing(m, *args)
       end
 
       def respond_to?(m, include_private = false)
-        super || m.to_s[/following_(.+)_count/] || m.to_s[/following_(.+)/]
+        super || !!m.to_s[/following_(.+)_count/] || !!m.to_s[/following_(.+)/]
       end
 
       # Returns a follow record for the current instance and followable object.

test/acts_as_followable_test.rb

@@ -259,7 +259,7 @@ class ActsAsFollowableTest < ActiveSupport::TestCase
       end
 
       should "return false when called with a nonexistent method" do
-        assert (not @oasis.respond_to?(:foobar))
+        assert (@oasis.respond_to?(:foobar) == false)
       end
     end
 

test/acts_as_follower_test.rb

@@ -184,7 +184,7 @@ class ActsAsFollowerTest < ActiveSupport::TestCase
       end
 
       should "return false when called with a nonexistent method" do
-        assert (not @sam.respond_to?(:foobar))
+        assert (@sam.respond_to?(:foobar) == false)
       end
     end