marnen-foreigner 0.5.2: MS SQL Server 2005 support

Hi everyone!

I'm delighted to announce the release of marnen-foreigner 0.5.2. This
is my fork of matthuhiggins-foreigner 0.5.0, and adds MS SQL Server 2005
foreign key constraint support to the MySQL and PostgreSQL support that
was already in the gem.

This is my first public gem release, and I'd welcome nitpicks and
contributions. Source is available at http://github/marnen/foreigner .
Enjoy!

Best,