Bump version to 1.6.0

Bump the dependency on sequel to 3.39.0.  The streaming support
requires pg 0.14.1, but as most people won't be using it, I am
leaving the dependency on pg at 0.8.0.

CHANGELOG

@@ -1,4 +1,4 @@
-=== HEAD
+=== 1.6.0 (2012-09-04)
 
 * Replace PQsetRowProcessor streaming with PQsetSingleRowMode streaming introduced in PostgreSQL 9.2beta3 (jeremyevans)
 

sequel_pg.gemspec

@@ -1,6 +1,6 @@
 SEQUEL_PG_GEMSPEC = Gem::Specification.new do |s|
   s.name = 'sequel_pg'
-  s.version = '1.5.1'
+  s.version = '1.6.0'
   s.platform = Gem::Platform::RUBY
   s.has_rdoc = false
   s.extra_rdoc_files = ["README.rdoc", "CHANGELOG", "MIT-LICENSE"]
@@ -13,7 +13,7 @@ SEQUEL_PG_GEMSPEC = Gem::Specification.new do |s|
   s.files = %w(MIT-LICENSE CHANGELOG README.rdoc Rakefile ext/sequel_pg/extconf.rb ext/sequel_pg/sequel_pg.c lib/sequel_pg/sequel_pg.rb lib/sequel/extensions/pg_streaming.rb)
   s.extensions << 'ext/sequel_pg/extconf.rb'
   s.add_dependency("pg", [">= 0.8.0"])
-  s.add_dependency("sequel", [">= 3.36.0"])
+  s.add_dependency("sequel", [">= 3.39.0"])
   s.description = <<END
 sequel_pg overwrites the inner loop of the Sequel postgres
 adapter row fetching code with a C version.  The C version