Sqlite-chronicle

- Fix for a bug where `enable_chronicle()` failed with an error if the table did not have a column called `id`. [5](https://github.com/simonw/sqlite-chronicle/issues/5)

- New `updates_since()` function for looping through updates that have occurred since a specific version. [2](https://github.com/simonw/sqlite-chronicle/issues/2)
- The `version` is now incremented for any change to any row, which ensures the system can handle cases where more than 1,000 rows are inserted or updated simultaneously. [3](https://github.com/simonw/sqlite-chronicle/issues/3)

- Initial release, with the `sqlite_chronicle.enable_chronicle()` function. [1](https://github.com/simonw/sqlite-chronicle/issues/1)