For some reason the bash magic doesn't work properly on all platforms.

See: http://groups.google.com/group/nodejs/browse_thread/thread/be7d01c3950b2e64

Seems like something in casting of strings to buffers has changed. Will
need to investigate on older node versions.

See: http://groups.google.com/group/nodejs/browse_thread/thread/8a4563cac244456d

This makes it easier for people to have their own database config for system
tests.

In the past we were relying on the fact that invalid utf8 sequences
would not effect the length of the new buffer. We need to explictely
declare the binary string type if we want to create a buffer with a
0 byte.

Null values were causing problems in columns when typecasting them. This patch
makes sure null values are never typecasted.

It seems like some stream errors may occur sync, so one has to attach an error
listener to the stream before executing `connect`. I'm not sure if this is how
things should behave, will clarify with Ryan.

Couldn't come up with a good unit test for this, need better testing gear soon.

Those packets can happen in situations where mysql is refusing connections due
to the max_connections setting.

Also not executing all tests in the config since a new class of tests were
introduced that are potentially effecting server configuration.