Merge branch 'refs/heads/3.3/develop' into 3.3/master
Update PDO.php

I made some changes on "open" function to use PDO with MsSQL Server 2012.
http://www.php.net/manual/en/ref.pdo-sqlsrv.connection.php
Now works fine.  Hope this helps.
Update Builder.php

I search every where to fix the problem with column set as identity.  MsSQL shows this error every time that update a record using ORM: "Cannot update identity column 'ID'."
The problem is that the column ID was on the update query, so I made some changes to remove that field.  Is not a perfect way, but works for me for my project now.  check it out and I hope you can fix it as soon as possible.  Thank you.
Merge pull request #103 from saruman/patch-1

Update PDO.php
Merge pull request #104 from saruman/patch-2

Update Builder.php
Fixing Issue #97.
Merge branch 'refs/heads/3.3/master' into 3.3/develop