Revert "for DATE columns, return ruby Date object instead of Time (didn't realize I could create them from y,m,d integers without ActiveSupport)"

The Date class is sooooo sllooowwww :)
Will probably look into bringing in http://github.com/rtomayko/date-performance at some point.

This reverts commit 51babb3362.

ext/mysql2_ext.c

@@ -393,7 +393,7 @@ static VALUE rb_mysql_result_fetch_row(int argc, VALUE * argv, VALUE self) {
             val = Qnil;
           } else {
             strptime(row[i], "%F", &parsedTime);
-            val = rb_funcall(cDate, intern_new, 3, INT2NUM(1900+parsedTime.tm_year), INT2NUM(parsedTime.tm_mon+1), INT2NUM(parsedTime.tm_mday));
+            val = rb_funcall(rb_cTime, intern_local, 3, INT2NUM(1900+parsedTime.tm_year), INT2NUM(parsedTime.tm_mon+1), INT2NUM(parsedTime.tm_mday));
           }
           break;
         case MYSQL_TYPE_TINY_BLOB:

lib/active_record/connection_adapters/mysql2_adapter.rb

@@ -21,7 +21,7 @@ module ActiveRecord
           when :float         then Float
           when :decimal       then BigDecimal
           when :datetime      then Time
-          when :date          then Date
+          when :date          then Time
           when :timestamp     then Time
           when :time          then Time
           when :text, :string then String

spec/mysql2/result_spec.rb

@@ -140,6 +140,7 @@ describe Mysql2::Result do
     end
 
     {
+      'date_test' => 'DATE',
       'date_time_test' => 'DATETIME',
       'timestamp_test' => 'TIMESTAMP',
       'time_test' => 'TIME'
@@ -149,14 +150,6 @@ describe Mysql2::Result do
       end
     end
 
-    {
-      'date_test' => 'DATE'
-    }.each do |field, type|
-      it "should return a Date for #{type}" do
-        @test_result[field].class.should eql(Date)
-      end
-    end
-
     {
       'char_test' => 'CHAR',
       'varchar_test' => 'VARCHAR',