[dm-serializer] Added json_pure as a required dependency

* If native json gem is not installed, then json_pure will be
  used as a fallback.

[#1137 state:resolved]

dm-serializer/Rakefile

@@ -17,7 +17,8 @@ begin
 
     gem.rubyforge_project = 'datamapper'
 
-    gem.add_dependency 'dm-core', '~> 0.10.2'
+    gem.add_dependency 'dm-core',   '~> 0.10.2'
+    gem.add_dependency 'json_pure', '~> 1.2.0'
 
     gem.add_development_dependency 'rspec', '~> 1.2.9'
     gem.add_development_dependency 'yard',  '~> 0.4.0'

dm-serializer/dm-serializer.gemspec

@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Guy van den Berg"]
-  s.date = %q{2009-11-24}
+  s.date = %q{2009-11-30}
   s.description = %q{DataMapper plugin for serializing Resources and Collections}
   s.email = %q{vandenberg.guy [a] gmail [d] com}
   s.extra_rdoc_files = [
@@ -67,15 +67,18 @@ Gem::Specification.new do |s|
 
     if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency(%q<dm-core>, ["~> 0.10.2"])
+      s.add_runtime_dependency(%q<json_pure>, ["~> 1.2.0"])
       s.add_development_dependency(%q<rspec>, ["~> 1.2.9"])
       s.add_development_dependency(%q<yard>, ["~> 0.4.0"])
     else
       s.add_dependency(%q<dm-core>, ["~> 0.10.2"])
+      s.add_dependency(%q<json_pure>, ["~> 1.2.0"])
       s.add_dependency(%q<rspec>, ["~> 1.2.9"])
       s.add_dependency(%q<yard>, ["~> 0.4.0"])
     end
   else
     s.add_dependency(%q<dm-core>, ["~> 0.10.2"])
+    s.add_dependency(%q<json_pure>, ["~> 1.2.0"])
     s.add_dependency(%q<rspec>, ["~> 1.2.9"])
     s.add_dependency(%q<yard>, ["~> 0.4.0"])
   end