Painless, version-controlled database refactoring

Hi,

I completely forgot to add "INSERT" examples so I will update the slides shortly to include these.

Clear delivery and nicely paced, really easy to follow at the end of the day. Slides were good and the live coding didn't interrupt the flow. Code was hard to read on the projector, but you did mitigate that by just swapping over to the terminal.

Really liked the practical nature of the whole thing, always good when you're seeing the stuff that people are actually using in their projects rather than say, just repeating the documentation. Great Q&A at the end.

Slides have been updated to include an example INSERT change-set which also includes the "context" attribute as mentioned during the Q&A portion.