Support Drupal 7.20

I'm going to open a separate issue related to this, because it's not just that Speedy doesn't have support for 7.17 it actually breaks the upgrade path to 7.17. But I did want to say that I worked around it by copying the 7.16 folder and renaming it 7.17. I assume this only works because there were no major modifications to core JavaScript files in between.
A more detailed step-by-step:

1. Before any other upgrade step, go into the module's folder which will like be [site root]/sites/all/modules/speedy
2. Copy the folder named 7.16, paste it in the same location. Now you should have a folder named "7.16 - copy" or similar
3. Rename "7.16 - copy" to 7.17
4. Procede with the minor core version upgrade as usual

Note: do not upgrade to 7.17 with Speedy enabled unless you do the steps above. You'll get stuck on one of the database update steps.

Working on it

http://drupal.org/node/1889540 is the release with 7.18 support.

Out of curiosity, what happens to the JS when a new version of Drupal comes out? Does Speedy continue to use the previous version (7.18 in this case) Javascript until a new module update for Speedy that's compatible with the latest Drupal core version is released?

To answer my own question... Nope. It looks like if you update to the latest version of Drupal and Speedy is behind the times, the module loses its utility.

Q: Is there a better approach to this other than waiting for Speedy to catch up before upgrading Drupal?

http://drupal.org/node/1896170 is the release with 7.19 support.

Reopen. Need support for newly released drupal-7.20

http://drupal.org/node/1923134 - Drupal 7.20 support.