Fixes previous commit, pg dependency removed

Seems I had to do this in Rakefile as gemspec is autogenerated.

Oh Jeweler.

Rakefile

@@ -11,7 +11,6 @@ begin
     gem.homepage = "http://github.com/afair/postgresql_cursor"
     gem.authors = ["Allen Fair"]
     gem.add_dependency 'activerecord'
-    gem.add_dependency 'pg'
     # gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
   end
   Jeweler::GemcutterTasks.new

postgresql_cursor.gemspec

@@ -5,11 +5,11 @@
 
 Gem::Specification.new do |s|
   s.name = "postgresql_cursor"
-  s.version = "0.4.0"
+  s.version = "0.4.1"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Allen Fair"]
-  s.date = "2012-07-21"
+  s.date = "2013-02-20"
   s.description = "PostgreSQL Cursor is an extension to the ActiveRecord PostgreSQLAdapter for very large result sets. It provides a cursor open/fetch/close interface to access data without loading all rows into memory, and instead loads the result rows in \"chunks\" (default of 10_000 rows), buffers them, and returns the rows one at a time."
   s.email = "allen.fair@gmail.com"
   s.extra_rdoc_files = [
@@ -29,22 +29,22 @@ Gem::Specification.new do |s|
   ]
   s.homepage = "http://github.com/afair/postgresql_cursor"
   s.require_paths = ["lib"]
-  s.rubygems_version = "1.8.16"
+  s.rubygems_version = "1.8.24"
   s.summary = "ActiveRecord PostgreSQL Adapter extension for using a cursor to return a large result set"
 
   if s.respond_to? :specification_version then
     s.specification_version = 3
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency(%q<activerecord>, [">= 0"])
-      #s.add_runtime_dependency(%q<pg>, [">= 0"])
+      s.add_runtime_dependency(%q<pg>, [">= 0"])
     else
       s.add_dependency(%q<activerecord>, [">= 0"])
-      #s.add_dependency(%q<pg>, [">= 0"])
+      s.add_dependency(%q<pg>, [">= 0"])
     end
   else
     s.add_dependency(%q<activerecord>, [">= 0"])
-    #s.add_dependency(%q<pg>, [">= 0"])
+    s.add_dependency(%q<pg>, [">= 0"])
   end
 end