Bump mongo driver version and fix failing test due to that.

Rakefile

@@ -13,7 +13,7 @@ Jeweler::Tasks.new do |gem|
   gem.version     = MongoMapper::Version
 
   gem.add_dependency('activesupport', '>= 2.3.4')
-  gem.add_dependency('mongo', '0.19.1')
+  gem.add_dependency('mongo', '0.19.3')
   gem.add_dependency('jnunemaker-validatable', '1.8.3')
 
   gem.add_development_dependency('jnunemaker-matchy', '0.4.0')
@@ -32,21 +32,5 @@ Rake::TestTask.new(:test) do |test|
   test.verbose = true
 end
 
-namespace :test do
-  Rake::TestTask.new(:units) do |test|
-    test.libs << 'test'
-    test.ruby_opts << '-rubygems'
-    test.pattern = 'test/unit/**/test_*.rb'
-    test.verbose = true
-  end
-
-  Rake::TestTask.new(:functionals) do |test|
-    test.libs << 'test'
-    test.ruby_opts << '-rubygems'
-    test.pattern = 'test/functional/**/test_*.rb'
-    test.verbose = true
-  end
-end
-
 task :default  => :test
 task :test     => :check_dependencies

lib/mongo_mapper.rb

@@ -1,19 +1,13 @@
+# Make sure you have the following libs in your load path or you could have issues:
+#   gem 'activesupport', '>= 2.3.4'
+#   gem 'mongo', '0.19.3'
+#   gem 'jnunemaker-validatable', '1.8.3'
+# gem 'activesupport', '= 2.3.4'
 require 'set'
 require 'uri'
-
-# if Gem is defined i'll assume you are using rubygems and lock specific versions
-# call me crazy but a plain old require will just get the latest version you have installed
-# so i want to make sure that if you are using gems you do in fact have the correct versions
-# if there is a better way to do this, please enlighten me!
-if self.class.const_defined?(:Gem)
-  gem 'activesupport', '>= 2.3.4'
-  gem 'mongo', '0.19.1'
-  gem 'jnunemaker-validatable', '1.8.3'
-end
-
-require 'active_support/all'
 require 'mongo'
 require 'validatable'
+require 'active_support/all'
 
 module MongoMapper
   # generic MM error

test/functional/test_indexing.rb

@@ -31,8 +31,8 @@ class IndexingTest < Test::Unit::TestCase
       # just checking have_index('first_name_1_last_name_-1') I'm checking
       # the values of the indexes to make sure the index creation was successful
       @document.collection.index_information.detect do |index|
-        keys = index[1]
-        keys.include?(['first_name', 1]) && keys.include?(['last_name', -1])
+        keys = index[0]
+        keys.include?('first_name_1') && keys.include?('last_name_-1')
       end.should_not be_nil
     end